TiN‐Ti(C,N)‐結合膜‐α‐Al2O3膜被覆切削工具のマイクロ組織と切削特性

書誌事項

タイトル別名
  • The Microstructure and Cutting Performance of TiN-Ti(C,N)-a Bonding Layer-.ALPHA.-Al2O3 Films Coated Cutting Tools.
  • TiN-Ti C N ケツゴウ マク アルファーAl2O3 マク ヒフク セッサク コウグ ノ マイクロ ソシキ ト セッサク トクセイ

この論文をさがす

抄録

We developed cemented carbide cutting tools coated with a layer of TiN, moderate temperature-Ti (C, N), bonding, and α-Al2O3 by chemical vapor deposition (CVD). Tool life is about twice that of ordinary TiN-Ti (C, N) -TiC-κ-Al2O3 coating in cutting tests on a cast metal FC 250 due to improved α-Al2O3 layer adherence.<br>CVD coatings of cutting tools were studied using X-ray diffraction, SEM, EPMA, TEM, and TEM-EDX, with the following results:<br>(1) Bonding layer grains consisted of Ti, C, N, and O, or of Ti, C, and O.<br>(2) The crystal structure of the bonding layer phase was face-centered cubic with a lattice parameter of 0.431nm.<br>(3) Bonding layer grains grew epitaxially on moderate temperature-Ti (C, N) layer grains.<br>(4) No disorder of lattice fringes in interfaces between bonding layer grains and α-Al2O3 layer grains was seen. (3) and (4) are considered to be the reason for improved tool life and α-Al2O3 layer adherence.

収録刊行物

  • 表面技術

    表面技術 50 (1), 47-51, 1999

    一般社団法人 表面技術協会

被引用文献 (2)*注記

もっと見る

参考文献 (7)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ