Machining performance of Ti-Al-Si-N coated inserts

被引：73

作者：

Chen, Li ^{[1
,3
]}

Wang, She Q. ^{[1
,3
]}

Du, Yong ^{[1
,2
]}

Zhou, Shu Z. ^{[3
]}

Gang, Tie ^{[4
]}

Fen, Ji C. ^{[4
]}

Chang, Ke K. ^{[1
]}

Li, Yi W. ^{[1
]}

Xiong, Xiang ^{[1
]}

机构：

[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[2] Cent South Univ, Sci Ctr Phase Diagram & Mat Design & Manufacture, Changsha 410083, Hunan, Peoples R China

[3] China Zhuzhou Cemented Carbide Cutting Tools Co L, Zhuzhou 412007, Peoples R China

[4] Harbin Inst Technol, State Key Lab Adv Welding Prod Technol, Harbin 150006, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 205卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ti-Al-Si-N coating; Multilayer; Hardness; Adhesive strength; Machining performance; MECHANICAL-PROPERTIES; COATINGS; MICROSTRUCTURE; SUPERHARD; HARDNESS; (TI;

D O I：

10.1016/j.surfcoat.2010.07.043

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ti-Al-Si-N quaternary coating has recently been developed for industrial applications due to its excellent machining performance Here, we present a comparative research on TI-Al-N single layer, TI-Al-Si-N single layer, TIAIN-TIAISIN bilayer and TIAIN/TIAISIN multilayer coatings deposited onto cemented carbide substrates by cathodic arc evaporation. The incorporation of Si into the Ti-Al-N coating results in an increase in hardness and thermal stability due to the formation of nanocomposite nc-TIAIN/a-Si3N4, and thereby causes an Improved performance during continuous cutting. However, the lower toughness and adhesive strength with a substrate reduce its cutting-life during milling. Further optimization of Ti-Al-Si-N coated Inserts during milling can be obtained by a structure adjustment from the nanocomposite into TIAIN-TiAISIN bilayer and TIAIN/TIAISIN multilayer coatings, which causes an increase to 156% and 172% for the life-time of Ti-Al-Si-N coated inserts, respectively. Our results indicate that the machining performance of coatings containing Si in both continuous cutting and milling can be optimized by the structure design of the TiAIN/TiAISiN multilayer. where the coating sustains a high hardness of the Ti-Al-Si-N coating combined with a good cohesive strength with the substrate similar to the Ti-Al-N coating Crown Copyright (C) 2010 Published by Elsevier By. All rights reserved.

引用

页码：582 / 586

页数：5

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