{"id":22877,"date":"2024-09-30T10:56:40","date_gmt":"2024-09-30T02:56:40","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=22877"},"modified":"2024-09-30T10:56:40","modified_gmt":"2024-09-30T02:56:40","slug":"cutting-performance-of-coated-carbide-tools","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/cutting-performance-of-coated-carbide-tools\/","title":{"rendered":"C\u00e1ch \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1eaft c\u1ee7a d\u1ee5ng c\u1ee5 cacbua ph\u1ee7"},"content":{"rendered":"
Trong c\u00e1c v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 c\u1eaft hi\u1ec7n \u0111\u1ea1i, carbide chi\u1ebfm \u01b0u th\u1ebf. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 carbide ph\u1ee7 v\u00e0o kho\u1ea3ng n\u0103m 1968 \u0111\u00e3 \u0111\u00e1nh d\u1ea5u m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng \u0111\u00e1ng k\u1ec3 trong l\u0129nh v\u1ef1c v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5, n\u00e2ng cao \u0111\u00e1ng k\u1ec3 tr\u00ecnh \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a c\u00e1c quy tr\u00ecnh c\u1eaft. Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 n\u00e0y \u0111\u00e3 t\u0103ng l\u00ean h\u01a1n 1000-1200\u00b0C, trong khi nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd cho l\u1eafng \u0111\u1ecdng h\u01a1i v\u1eadt l\u00fd (PVD) th\u01b0\u1eddng v\u1eabn d\u01b0\u1edbi 500\u00b0C, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh quy tr\u00ecnh x\u1eed l\u00fd cu\u1ed1i c\u00f9ng kh\u1ea3 thi cho l\u1edbp ph\u1ee7 carbide. \u0110i\u1ec1u n\u00e0y n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1eaft c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 carbide, d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u1eaft t\u1ed1c \u0111\u1ed9 cao v\u00e0 gia c\u00f4ng c\u00e1c v\u1eadt li\u1ec7u si\u00eau c\u1ee9ng. T\u1ef7 l\u1ec7 hi\u1ec7u su\u1ea5t\/chi ph\u00ed tuy\u1ec7t v\u1eddi c\u1ee7a ch\u00fang \u0111\u00e3 th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 carbide l\u00ean m\u1ed9t t\u1ea7m cao m\u1edbi.<\/p>\n

Hi\u1ec7n nay, TiN l\u00e0 l\u1edbp ph\u1ee7 ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft; tuy nhi\u00ean, c\u00e1c l\u1edbp ph\u1ee7 nitride truy\u1ec1n th\u1ed1ng nh\u01b0 TiN c\u00f3 \u0111\u1ed9 c\u1ee9ng th\u1ea5p, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n k\u00e9m v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t y\u1ebfu, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang trong c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft kh\u00f4. Nh\u1eefng c\u1ea3i ti\u1ebfn trong l\u1edbp ph\u1ee7 TiN \u0111\u00e3 t\u1eadp trung v\u00e0o vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c h\u1ee3p kim m\u1edbi d\u1ef1a tr\u00ean TiN v\u00e0 c\u00e1c l\u1edbp composite \u0111a th\u00e0nh ph\u1ea7n, nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1edbp ph\u1ee7 ch\u1ecbu m\u00e0i m\u00f2n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao th\u00f4ng qua vi\u1ec7c \u0111\u01b0a c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim (nh\u01b0 Al, Zr, Cr, V) v\u00e0o l\u1edbp ph\u1ee7 TiN. \u0110i\u1ec1u n\u00e0y t\u1ea1o th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 \u0111a nguy\u00ean t\u1ed1 m\u1edbi gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng c\u1ee7a l\u1edbp ph\u1ee7 v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t. L\u1edbp ph\u1ee7 TiAlN m\u1edbi, \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1eb1ng c\u00e1ch c\u1ea5y c\u00e1c nguy\u00ean t\u1eed Al v\u00e0o m\u1ea1ng TiN, \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng l\u1edbp ph\u1ee7 c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong s\u1ea3n xu\u1ea5t to\u00e0n c\u1ea7u.<\/p>\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng h\u01a1n n\u1eefa \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a c\u1ee7a l\u1edbp ph\u1ee7 d\u1ee5ng c\u1ee5, c\u0169ng nh\u01b0 \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft gi\u1eefa l\u1edbp ph\u1ee7 v\u00e0 ch\u1ea5t n\u1ec1n, nghi\u00ean c\u1ee9u \u0111\u00e3 chuy\u1ec3n sang c\u00e1c h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 composite nhi\u1ec1u th\u00e0nh ph\u1ea7n v\u00e0 nhi\u1ec1u l\u1edbp. B\u00e0i b\u00e1o n\u00e0y s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p phun magnetron kh\u00f4ng c\u00e2n b\u1eb1ng \u0111\u1ec3 chu\u1ea9n b\u1ecb l\u1edbp ph\u1ee7 composite nh\u01b0 TiN, TiAlN, TiN-MoS\u2082 v\u00e0 CrAlTiN tr\u00ean c\u00e1c d\u1ee5ng c\u1ee5 carbide. B\u00e0i b\u00e1o ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m so s\u00e1nh c\u1eaft tr\u00ean TiN v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7 composite c\u1ee7a n\u00f3 trong \u0111i\u1ec1u ki\u1ec7n c\u1eaft kh\u00f4, nghi\u00ean c\u1ee9u hi\u1ec7u su\u1ea5t c\u1eaft v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7 composite d\u1ef1a tr\u00ean TiN. Nghi\u00ean c\u1ee9u n\u00e0y c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 th\u00fac \u0111\u1ea9y h\u01a1n n\u1eefa c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7.<\/p>\n

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Ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c nghi\u1ec7m<\/h1>\n

L\u1edbp ph\u1ee7 composite TiN, TiAlN, TiN-MoS\u2082 v\u00e0 CrAlTiN \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean c\u00e1c d\u1ee5ng c\u1ee5 cacbua YT14 b\u1eb1ng thi\u1ebft b\u1ecb m\u1ea1 ion phun magnetron kh\u00f4ng c\u00e2n b\u1eb1ng tr\u01b0\u1eddng \u0111\u00f3ng t\u1eeb Teer. \u0110\u1ed9 c\u1ee9ng nano v\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a l\u1edbp ph\u1ee7 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u00e1y ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng nano Nano Test 600 v\u1edbi \u0111\u1ea7u kim c\u01b0\u01a1ng ch\u1ecbu t\u1ea3i 3 mN. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u sai s\u1ed1 th\u1ef1c nghi\u1ec7m, c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng v\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o l\u00e0 gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a n\u0103m ph\u00e9p \u0111o. Ngo\u00e0i ra, th\u1eed nghi\u1ec7m \u0111\u1ed9 c\u1ee9ng vi m\u00f4 Vickers \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u0111\u1ec3 x\u00e1c nh\u1eadn c\u00e1c ph\u00e9p \u0111o \u0111\u1ed9 c\u1ee9ng.<\/p>\n

H\u00ecnh th\u00e1i v\u00e0 c\u1ea5u tr\u00fac pha c\u1ee7a l\u1edbp ph\u1ee7 d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch b\u1eb1ng k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed qu\u00e9t (SEM) v\u00e0 m\u00e1y \u0111o nhi\u1ec5u x\u1ea1 tia X Advance 8 (XRD). C\u00e1c th\u1eed nghi\u1ec7m c\u1eaft tr\u00ean c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong m\u1ed9t trung t\u00e2m gia c\u00f4ng CNC, v\u1edbi v\u1eadt li\u1ec7u ph\u00f4i l\u00e0 th\u00e9p PCrNi3MoVA. \u0110\u1ed9 m\u00f2n c\u1ee7a l\u01b0\u1ee1i c\u1eaft \u0111\u01b0\u1ee3c quan s\u00e1t v\u00e0 \u0111o b\u1eb1ng k\u00ednh hi\u1ec3n vi d\u1ee5ng c\u1ee5 30x. Tu\u1ed5i th\u1ecd c\u1ee7a d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean chi\u1ec1u r\u1ed9ng v\u00f9ng m\u00f2n (VBc) tr\u00ean m\u1eb7t b\u00ean v\u01b0\u1ee3t qu\u00e1 0,6 mm l\u00e0m ti\u00eau ch\u00ed cho tu\u1ed5i th\u1ecd c\u1ee7a d\u1ee5ng c\u1ee5, cho ph\u00e9p so s\u00e1nh tu\u1ed5i th\u1ecd c\u1eaft c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5.<\/p>\n

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K\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m v\u00e0 ph\u00e2n t\u00edch<\/h1>\n

Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng v\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a l\u1edbp ph\u1ee7<\/h2>\n

H\u00ecnh 1 cho th\u1ea5y \u0111\u01b0\u1eddng cong t\u1ea3i-d\u1ee1 t\u1ea3i thu \u0111\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh \u0111o \u0111\u1ed9 c\u1ee9ng nano c\u1ee7a l\u1edbp ph\u1ee7 composite CrAlTiN. \u0110\u01b0\u1eddng cong n\u00e0y cho ph\u00e9p ch\u00fang t\u00f4i x\u00e1c \u0111\u1ecbnh c\u1ea3 \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a m\u00e0ng CrAlTiN. H\u1ec7 s\u1ed1 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i<\/p>\n

R=(hmax-hres)\/hmax \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, trong \u0111\u00f3 hmax l\u00e0 \u0111\u1ed9 s\u00e2u l\u00f5m \u1edf t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a v\u00e0<\/p>\n

hres l\u00e0 \u0111\u1ed9 s\u00e2u c\u00f2n l\u1ea1i sau khi d\u1ee1 t\u1ea3i. Gi\u00e1 tr\u1ecb R cao h\u01a1n bi\u1ec3u th\u1ecb \u0111\u1ed9 \u0111\u00e0n h\u1ed3i l\u1edbn h\u01a1n. T\u1eeb \u0111\u01b0\u1eddng cong v\u1ebft l\u00f5m nano trong H\u00ecnh 2, \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u00e0ng CrAlTiN \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y l\u00e0 33 GPa, v\u1edbi m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i l\u00e0 675 GPa.<\/p>\n

Figure 2 also compares the nano-hardness of TiN, TiAlN, TiN-MoS\u2082, and CrAlTiN coatings. The measured nano-hardness values are 18 GPa for TiN, 30 GPa for TiAlN, 15 GPa for TiN-MoS\u2082, and 33 GPa for CrAlTiN. The order of nano-hardness for the four coatings is: CrAlTiN > TiAlN > TiN > TiN-MoS\u2082. The addition of composite elements significantly alters the hardness of the TiN coating; in particular, the incorporation of Al increases the hardness by 12 GPa, while the addition of Cr and Al collectively raises the nano-hardness by 15 GPa. This indicates that Cr and Al form hard phases within the composite coating, enhancing its hardness. Conversely, the combination of TiN with MoS\u2082results in a 3 GPa decrease in nano-hardness, suggesting that the MoS\u2082phase exists as a soft phase within the coating, reducing hardness. However, this lubricating phase significantly improves the coating’s lubrication properties and lowers its friction coefficient.<\/p>\n

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H\u00ecnh 3 tr\u00ecnh b\u00e0y c\u00e1c gi\u00e1 tr\u1ecb m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i \u0111o \u0111\u01b0\u1ee3c cho t\u1eebng l\u1edbp ph\u1ee7. T\u1eeb h\u00ecnh, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a l\u1edbp ph\u1ee7 TiN l\u00e0 214 GPa, c\u1ee7a l\u1edbp ph\u1ee7 TiAlN l\u00e0 346 GPa, l\u1edbp ph\u1ee7 TiN-MoS\u2082 c\u00f3 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i l\u00e0 164 GPa v\u00e0 l\u1edbp ph\u1ee7 CrAlTiN \u0111\u1ea1t 675 GPa. Th\u1ee9 t\u1ef1 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i cho b\u1ed1n l\u1edbp ph\u1ee7 l\u00e0 CrAlTiN > TiAlN > TiN > TiN-MoS\u2082. \u0110i\u1ec1u n\u00e0y ch\u1ec9 ra r\u1eb1ng m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi \u0111\u1ed9 c\u1ee9ng c\u1ee7a ch\u00fang. \u0110\u00e1ng ch\u00fa \u00fd, l\u1edbp ph\u1ee7 CrAlTiN cho th\u1ea5y s\u1ef1 gia t\u0103ng t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn nh\u1ea5t v\u1ec1 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i, v\u1edbi gi\u00e1 tr\u1ecb cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c l\u1edbp ph\u1ee7 kh\u00e1c \u1edf m\u1ee9c 675 GPa. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf r\u1eb1ng l\u1edbp ph\u1ee7 CrAlTiN l\u1eafng \u0111\u1ecdng c\u00f3 c\u1ea3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i cao.<\/p>\n

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\u0110\u1ed3ng th\u1eddi, c\u00e1c th\u1eed nghi\u1ec7m \u0111\u1ed9 c\u1ee9ng vi m\u00f4 Vickers \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh tr\u00ean t\u1eebng l\u1edbp ph\u1ee7 d\u1ee5ng c\u1ee5 b\u1eb1ng m\u00e1y th\u1eed \u0111\u1ed9 c\u1ee9ng Vickers, v\u1edbi t\u1ea3i tr\u1ecdng t\u00e1c d\u1ee5ng l\u00e0 15 g trong 10 gi\u00e2y. K\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 4. M\u1eb7c d\u00f9 nguy\u00ean l\u00fd th\u1eed nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed9 c\u1ee9ng vi m\u00f4 Vickers v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nano-indentation kh\u00e1c nhau, nh\u01b0ng khi so s\u00e1nh c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng nano trong H\u00ecnh 2 v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng vi m\u00f4 trong H\u00ecnh 4 cho th\u1ea5y xu h\u01b0\u1edbng \u0111\u1ed9 c\u1ee9ng vi m\u00f4 c\u1ee7a t\u1eebng l\u1edbp ph\u1ee7 \u0111\u1ec1u ph\u00f9 h\u1ee3p v\u1edbi xu h\u01b0\u1edbng \u0111\u1ed9 c\u1ee9ng nano. \u0110\u00e1ng ch\u00fa \u00fd, l\u1edbp ph\u1ee7 CrAlTiN th\u1ec3 hi\u1ec7n \u0111\u1ed9 c\u1ee9ng vi m\u00f4 Vickers cao nh\u1ea5t, \u0111o \u0111\u01b0\u1ee3c HV1560.<\/p>\n

 <\/p>\n

Th\u1eed nghi\u1ec7m khoan<\/h2>\n

B\u1ed1n lo\u1ea1i d\u1ee5ng c\u1ee5 cacbua tr\u00e1ng ph\u1ee7<\/a>\u2014TiN, TiAlN, TiN-MoS\u2082 v\u00e0 CrAlTiN\u2014\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd c\u00f9ng m\u1ed9t v\u1eadt li\u1ec7u, th\u00e9p PCrNi3MoVA, v\u00e0 \u0111\u1ed9 m\u00f2n c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 so s\u00e1nh \u0111\u1ed9 b\u1ec1n c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7 kh\u00e1c nhau. H\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 cho c\u00e1c d\u1ee5ng c\u1ee5 TiN, TiAlN, TiN-MoS\u2082 v\u00e0 CrAlTiN \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 5, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u1edf \u0111\u1ed9 ph\u00f3ng \u0111\u1ea1i 600 l\u1ea7n. H\u00ecnh minh h\u1ecda s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 h\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t gi\u1eefa b\u1ed1n l\u1edbp ph\u1ee7, cho th\u1ea5y vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c th\u00e0nh ph\u1ea7n t\u1ed5ng h\u1ee3p \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 tr\u1ea1ng th\u00e1i k\u1ebft tinh c\u1ee7a h\u1ee3p ch\u1ea5t TiN.<\/p>\n

L\u1edbp ph\u1ee7 TiN cho th\u1ea5y c\u1ea5u tr\u00fac vi m\u00f4 b\u1ec1 m\u1eb7t \u0111\u1ed3ng nh\u1ea5t v\u1edbi c\u00e1c h\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf. Ng\u01b0\u1ee3c l\u1ea1i, l\u1edbp ph\u1ee7 TiAlN c\u00f3 h\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t th\u00f4 h\u01a1n v\u1edbi c\u00e1c c\u1ea5u tr\u00fac h\u1ea1t l\u1edbn h\u01a1n. Vi\u1ec7c b\u1ed5 sung Al t\u1ea1o ra nhi\u1ec1u h\u1ea1t c\u1ee9ng m\u00e0u tr\u1eafng s\u00e1ng c\u1ee7a nh\u00f4m oxit ho\u1eb7c nh\u00f4m nitrua xu\u1ea5t hi\u1ec7n trong m\u1ea1ng TiN. L\u1edbp ph\u1ee7 TiN-MoS\u2082 c\u00f3 s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u00e1ng k\u1ec3 c\u00e1c c\u1ea5u tr\u00fac h\u1ed7n h\u1ee3p d\u1ea1ng v\u1ea3y, ch\u1ee7 y\u1ebfu bao g\u1ed3m MoS\u2082 ph\u00e2n t\u00e1n \u0111\u1ed3ng \u0111\u1ec1u trong l\u1edbp ph\u1ee7 TiN\/MoS\u2082, g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean t\u00ednh ch\u1ea5t t\u1ef1 b\u00f4i tr\u01a1n c\u1ee7a n\u00f3. L\u1edbp ph\u1ee7 CrAlTiN th\u1ec3 hi\u1ec7n c\u00e1c h\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i m\u1ecbn v\u00e0 c\u1ea5u tr\u00fac \u0111\u1ed3ng nh\u1ea5t, d\u00e0y \u0111\u1eb7c v\u1edbi s\u1ef1 hi\u1ec7n di\u1ec7n \u0111\u00e1ng k\u1ec3 c\u1ee7a c\u00e1c h\u1ea1t c\u1ee9ng tr\u00ean b\u1ec1 m\u1eb7t.<\/p>\n

C\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m c\u1eaft cho c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong B\u1ea3ng 1. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c gi\u1eef kh\u00f4ng \u0111\u1ed5i v\u00e0 th\u1eddi gian c\u1eaft \u0111\u01b0\u1ee3c ghi l\u1ea1i cho \u0111\u1ebfn khi chi\u1ec1u r\u1ed9ng v\u00f9ng m\u00e0i m\u00f2n (VBc) tr\u00ean m\u1eb7t b\u00ean v\u01b0\u1ee3t qu\u00e1 0,6 mm, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ti\u00eau ch\u00ed \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5. So s\u00e1nh tu\u1ed5i th\u1ecd c\u1eaft cho c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 6.<\/p>\n

From Figure 6, the ranking of cutting life for the four coated tools is as follows: CrAlTiN > TiN-MoS\u2082 > TiAlN > TiN. This indicates that the Cr and Al elements in the TiN coating form hard phases, and the addition of Al is beneficial for the formation of aluminum oxides, which helps prevent further oxidation during the cutting process, thereby enhancing the tool’s oxidation resistance and contributing to an increase in cutting life. Additionally, the MoS\u2082 lubricating phase helps reduce the friction coefficient and improve the wear resistance of the tools, further extending their service life.<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

T\u00f3m l\u1ea1i, ph\u00e2n t\u00edch cho th\u1ea5y l\u1edbp ph\u1ee7 composite \u0111a th\u00e0nh ph\u1ea7n t\u1eadn d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a nhi\u1ec1u v\u1eadt li\u1ec7u ph\u1ee7 kh\u00e1c nhau, mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1ed9 b\u1ec1n v\u00e0 gi\u1ea3m ma s\u00e1t. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 h\u00ecnh th\u00e0nh c\u1ea1nh t\u00edch t\u1ee5 \u0111\u1ed3ng th\u1eddi cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c c\u00fa s\u1ed1c c\u01a1 h\u1ecdc v\u00e0 nhi\u1ec7t, k\u00e9o d\u00e0i \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd c\u1ee7a d\u1ee5ng c\u1ee5. Do \u0111\u00f3, d\u1ef1 ki\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7 composite \u0111a th\u00e0nh ph\u1ea7n s\u1ebd ti\u1ebfp t\u1ee5c t\u0103ng trong t\u01b0\u01a1ng lai.<\/p>\n

 <\/p>\n

Ph\u00e2n t\u00edch XRD<\/h2>\n

Ph\u00e2n t\u00edch XRD \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh tr\u00ean l\u1edbp ph\u1ee7 d\u1ee5ng c\u1ee5 CrAlTiN, l\u1edbp ph\u1ee7 n\u00e0y cho hi\u1ec7u su\u1ea5t c\u1eaft t\u1ed1t nh\u1ea5t, v\u1edbi k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 8. C\u00e1c m\u1eabu XRD cho th\u1ea5y \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, c\u00e1c pha tinh th\u1ec3 c\u1ee7a l\u1edbp ph\u1ee7 ch\u1ee7 y\u1ebfu bao g\u1ed3m Cr, CrN, Cr\u2082N v\u00e0 TiN, kh\u00f4ng ph\u00e1t hi\u1ec7n th\u1ea5y pha v\u00f4 \u0111\u1ecbnh h\u00ecnh n\u00e0o. Qu\u00e9t \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao h\u01a1n n\u1eefa b\u1ec1 m\u1eb7t l\u1edbp ph\u1ee7 cho th\u1ea5y s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u00e1ng k\u1ec3 c\u00e1c h\u1ea1t pha c\u1ee9ng. K\u1ebft h\u1ee3p v\u1edbi ph\u00e2n t\u00edch nhi\u1ec5u x\u1ea1 tia X, r\u00f5 r\u00e0ng l\u00e0 c\u00e1c pha c\u1ee9ng n\u00e0y ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c h\u1ea1t Cr, CrN, Cr\u2082N v\u00e0 TiN. C\u00e1c h\u1ea1t c\u1ee9ng n\u00e0y g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n tu\u1ed5i th\u1ecd c\u1eaft c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7.<\/p>\n

\"d\u1ee5ng<\/p>\n

Tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng<\/h1>\n

C\u00f4ng ngh\u1ec7 ph\u1ee7 cho d\u1ee5ng c\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1eaft c\u1ee7a d\u1ee5ng c\u1ee5 carbide, c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u1eaft v\u00e0 gi\u1ea3m chi ph\u00ed gia c\u00f4ng. K\u1ec3 t\u1eeb khi ra m\u1eaft v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1970, c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00e3 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. \u0110\u1ebfn cu\u1ed1i nh\u1eefng n\u0103m 1980, t\u1ef7 l\u1ec7 d\u1ee5ng c\u1ee5 carbide ph\u1ee9c t\u1ea1p s\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 \u1edf c\u00e1c n\u01b0\u1edbc c\u00f4ng nghi\u1ec7p \u0111\u00e3 v\u01b0\u1ee3t qu\u00e1 60%, c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 c\u1eaft v\u00e0 mang l\u1ea1i l\u1ee3i \u00edch kinh t\u1ebf \u0111\u00e1ng k\u1ec3. Hi\u1ec7n nay, h\u01a1n 80% d\u1ee5ng c\u1ee5 carbide \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y CNC \u1edf Nh\u1eadt B\u1ea3n v\u00e0 \u0110\u1ee9c \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp ph\u1ee7 v\u00e0 vi\u1ec7c \u00e1p d\u1ee5ng l\u1edbp ph\u1ee7 \u1edf c\u00e1c qu\u1ed1c gia nh\u01b0 Nga c\u0169ng \u0111ang gia t\u0103ng.<\/p>\n

Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u1ee7 \u1edf Trung Qu\u1ed1c v\u1eabn c\u00f2n h\u1ea1n ch\u1ebf, ngay c\u1ea3 c\u00e1c m\u00e1y CNC hi\u1ec7u su\u1ea5t cao th\u01b0\u1eddng d\u1ef1a v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 cacbua ti\u00eau chu\u1ea9n c\u00f3 hi\u1ec7u su\u1ea5t c\u1eaft k\u00e9m h\u01a1n. \u0110i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf to\u00e0n b\u1ed9 ti\u1ec1m n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1eaft ti\u1ec1n. Do \u0111\u00f3, vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c quy tr\u00ecnh ph\u1ee7 composite cho c\u00e1c c\u00f4ng c\u1ee5 cacbua l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 Trung Qu\u1ed1c tho\u00e1t kh\u1ecfi s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t cao nh\u1eadp kh\u1ea9u v\u00e0 th\u00fac \u0111\u1ea9y c\u00f4ng ngh\u1ec7 ph\u1ee7 trong n\u01b0\u1edbc.<\/p>\n

M\u1eb7c d\u00f9 gi\u00e1 c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 cacbua ph\u1ee7 cao h\u01a1n t\u1eeb 50% \u0111\u1ebfn 100% so v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 ti\u00eau chu\u1ea9n, nh\u01b0ng hi\u1ec7u su\u1ea5t c\u1eaft v\u01b0\u1ee3t tr\u1ed9i, tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 d\u00e0i h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t cao h\u01a1n d\u1eabn \u0111\u1ebfn chi ph\u00ed cho m\u1ed7i b\u1ed9 ph\u1eadn th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 kh\u00f4ng ph\u1ee7. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i cho c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee9c t\u1ea1p c\u00f3 chu k\u1ef3 s\u1ea3n xu\u1ea5t d\u00e0i h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 dao c\u1eaft b\u00e1nh r\u0103ng v\u00e0 dao doa, khi s\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 ph\u1ee7 kh\u00f4ng ch\u1ec9 b\u00f9 \u0111\u1eafp chi ph\u00ed ph\u1ee7 m\u00e0 c\u00f2n mang l\u1ea1i l\u1ee3i \u00edch kinh t\u1ebf \u0111\u00e1ng k\u1ec3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng t\u1ed1t h\u01a1n<\/p>\n

H\u01a1n n\u1eefa, c\u00e1c c\u00f4ng c\u1ee5 ph\u1ee7 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c c\u1eaft kh\u00f4, lo\u1ea1i b\u1ecf chi ph\u00ed s\u1ea3n xu\u1ea5t t\u0103ng th\u00eam v\u00e0 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u1ecfng c\u1eaft, do \u0111\u00f3 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe c\u1ee7a ng\u01b0\u1eddi lao \u0111\u1ed9ng. Do \u0111\u00f3, x\u00e9t v\u1ec1 c\u1ea3 g\u00f3c \u0111\u1ed9 l\u1ee3i \u00edch kinh t\u1ebf v\u00e0 x\u00e3 h\u1ed9i, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 carbide ph\u1ee7 l\u00e0 c\u00f3 l\u1ee3i. Trong t\u01b0\u01a1ng lai, khi nghi\u00ean c\u1ee9u v\u1ec1 c\u00f4ng ngh\u1ec7 ph\u1ee7 composite nhi\u1ec1u th\u00e0nh ph\u1ea7n v\u00e0 nhi\u1ec1u l\u1edbp ti\u1ebfn tri\u1ec3n, tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 carbide ph\u1ee7 s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 n\u00e0y.<\/p>\n

 <\/p>\n

S\u1ef1 k\u1ebft lu\u1eadn<\/h1>\n

Nghi\u00ean c\u1ee9u n\u00e0y s\u1eed d\u1ee5ng quy tr\u00ecnh ph\u1ee7 PVD b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ph\u00fan x\u1ea1 magnetron kh\u00f4ng c\u00e2n b\u1eb1ng tr\u01b0\u1eddng k\u00edn \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c l\u1edbp ph\u1ee7 composite nh\u01b0 TiN, TiAlN, TiN-MoS\u2082 v\u00e0 CrAlTiN. C\u00e1c th\u1eed nghi\u1ec7m so s\u00e1nh v\u1ec1 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc v\u00e0 c\u1eaft c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 n\u00e0y \u0111\u00e3 mang l\u1ea1i nh\u1eefng k\u1ebft qu\u1ea3 sau:<\/p>\n

1. Ph\u00e2n t\u00edch v\u1ebft l\u00f5m nano cho th\u1ea5y th\u1ee9 t\u1ef1 \u0111\u1ed9 c\u1ee9ng nano cho b\u1ed1n l\u1edbp ph\u1ee7 d\u1ee5ng c\u1ee5 nh\u01b0 sau: CrAlTiN > TiAlN > TiN > TiN-MoS\u2082. M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n l\u00e0 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi \u0111\u1ed9 c\u1ee9ng v\u00e0 c\u00e1c ph\u00e9p \u0111o \u0111\u1ed9 c\u1ee9ng vi m\u00f4 Vickers \u0111\u00e3 x\u00e1c nh\u1eadn th\u00eam \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c th\u1eed nghi\u1ec7m v\u1ebft l\u00f5m nano.<\/p>\n

2. Trong \u0111i\u1ec1u ki\u1ec7n c\u1eaft kh\u00f4 khi khoan th\u00e9p PCrNi3MoVA, tu\u1ed5i th\u1ecd c\u1eaft c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7 \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng nh\u01b0 sau: CrAlTiN > TiN-MoS\u2082 > TiAlN > TiN, cho th\u1ea5y l\u1edbp ph\u1ee7 composite \u0111a th\u00e0nh ph\u1ea7n mang l\u1ea1i hi\u1ec7u su\u1ea5t c\u1eaft t\u1ed1t h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi l\u1edbp ph\u1ee7 TiN ti\u00eau chu\u1ea9n, \u0111\u00e1nh d\u1ea5u h\u01b0\u1edbng \u0111i \u0111\u1ea7y h\u1ee9a h\u1eb9n cho s\u1ef1 ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7.<\/p><\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

In modern cutting tool materials, carbide\u00a0dominates. The development of coated carbide\u00a0tools around 1968 marked a significant revolution in the field of tool materials, advancing the level and capability of cutting processes considerably. The heat resistance of these tools has increased to over 1000-1200\u00b0C, while the processing temperature for Physical Vapor Deposition (PVD) typically remains below…<\/p>","protected":false},"author":2,"featured_media":22883,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-22877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cutting-tools-weekly"],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2024\/09\/t01c48d2b4445d64285.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/22877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=22877"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/22877\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/22883"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=22877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=22877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=22877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}