JP6735841B2 - 高耐熱性、高硬度及び耐摩耗性コーティング膜の形成方法、高耐熱性、高硬度及び耐摩耗性コーティング膜及びこれを含む切削工具 - Google Patents
高耐熱性、高硬度及び耐摩耗性コーティング膜の形成方法、高耐熱性、高硬度及び耐摩耗性コーティング膜及びこれを含む切削工具 Download PDFInfo
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Description
Claims (17)
- 金属母材上に金属窒化物層を形成する段階と、
前記金属窒化物層上に炭素層を形成する段階と、及び
前記炭素層にレーザーを照射して、前記金属窒化物層の一部として、炭素が添加された浸炭層を形成する段階とを含む、コーティング膜の形成方法であって、
前記金属窒化物層は、ジルコニウム(Zr)及びクロム(Cr)の少なくともいずれか一つとチタン(Ti)とを含むことを特徴とし、
前記浸炭層に、Ti 1−x M x (C y N 1−y )(0<x<1、0<y<1、Mは、Zr及び/又はCrである。)で表される化合物が含有されることを特徴とする
コーティング膜の形成方法。 - 前記浸炭層を形成する段階は、前記炭素層にパルスまたは連続波レーザーを照射することを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記浸炭層は、炭化チタン(TiC)を含むことを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記浸炭層は、
炭素高含有量部と、及び
浸炭後に残留する金属窒化物層と前記炭素高含有量部との間に配置され、前記炭素高含有量部より単位面積当たりの炭素含有量が少ない炭素低含有量部とを含むことを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記炭素高含有量部は、炭化チタン(TiC)を含むことを特徴とする
請求項5に記載のコーティング膜の形成方法。 - 前記浸炭層を形成する段階後に残留する炭素層を除去する段階をさらに含むことを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記炭素層は、グラファイトまたはカーボンナノチューブ(carbon nanotube、CNT)で形成されることを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記炭素層を形成する段階は、
前記金属窒化物層上に炭素物質と、バインダーと、及び溶媒とを含む炭素ペーストをコーティングする段階を含むことを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 前記炭素物質がグラファイトである場合、グラファイトの大きさは、1nm以上20μm以下であることを特徴とする
請求項9に記載のコーティング膜の形成方法。 - 前記金属窒化物層を形成する前に、前記金属母材上にチタン層を形成する段階をさらに含み、
前記金属窒化物層を形成する工程において、前記チタン層のチタンが窒化されて、窒化チタン(TiN)からなる接着力向上層が形成されることを特徴とする
請求項1に記載のコーティング膜の形成方法。 - 金属母材上に形成され、ジルコニウム(Zr)及びクロム(Cr)の少なくともいずれか一つとチタン(Ti)とを含む金属窒化物層と、及び前記金属窒化物層上に配置され、浸炭された金属窒化物を含む浸炭層とを含む、コーティング膜であって、
前記浸炭層に、Ti 1−x M x (C y N 1−y )(0<x<1、0<y<1、Mは、Zr及び/又はCr)で表される化合物が含有されることを特徴とするコーティング膜。 - 前記浸炭層は、炭化チタン(TiC)を含むことを特徴とする
請求項11に記載のコーティング膜。 - 前記浸炭層は、
炭素高含有量部と、及び
前記金属窒化物層と前記炭素高含有量部との間に配置され、前記炭素高含有量部より単位面積当たりの炭素含有量が少ない炭素低含有量部を含むことを特徴とする
請求項11に記載のコーティング膜。 - 前記炭素高含有量部は、炭化チタン(TiC)を含むことを特徴とする
請求項13に記載のコーティング膜。 - 前記金属母材と前記金属窒化物層との間に、窒化チタン(TiN)を含む接着力向上層がさらに形成されることを特徴とする
請求項11に記載のコーティング膜。 - 前記浸炭された金属窒化物は、金属窒化物に炭素が置換型及び侵入型中の少なくともいずれか一つの形態で挿入された化合物を含むことを特徴とする
請求項11に記載のコーティング膜。 - 請求項11に記載のコーティング膜を含む、切削工具。
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KR1020160024989A KR101741948B1 (ko) | 2016-03-02 | 2016-03-02 | 고내열, 고경도 및 내마모성 코팅막의 형성 방법, 고내열, 고경도 및 내마모성 코팅막 및 이를 포함하는 절삭 공구 |
KR10-2016-0099072 | 2016-08-03 | ||
KR1020160099072A KR101793833B1 (ko) | 2016-08-03 | 2016-08-03 | 고내열 및 고경도 질화물 코팅막의 내마모성 향상 방법, 코팅막 및 이를 포함하는 절삭 공구 |
PCT/KR2017/002254 WO2017150908A1 (ko) | 2016-03-02 | 2017-03-02 | 고내열, 고경도 및 내마모성 코팅막의 형성 방법, 고내열, 고경도 및 내마모성 코팅막 및 이를 포함하는 절삭 공구 |
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