Effects of tailored nitriding layers on comprehensive properties of duplex plasma-treated AlTiN coatings

被引：37

作者：

Deng, Yang ^{[1
]}

Tan, Chaolin ^{[1
,2
]}

Wang, Yi ^{[3
]}

Chen, Ling ^{[1
]}

Cai, Panpan ^{[1
]}

Kuang, Tongchun ^{[1
]}

Lei, Shumei ^{[1
]}

Zhou, Kesong ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangdong Inst New Mat, Natl Engn Lab Modern Mat Swface Engn Technol, Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510651, Guangdong, Peoples R China

[3] Zhongkai Univ Agr & Engn, Fac Mech & Elect Engn, Guangzhou 510225, Guangdong, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 12期

关键词：

Plasma nitriding; Duplex treatment; Arc; Compound layer; AlTiN; Adhesion strength; MECHANICAL-PROPERTIES; THIN-FILMS; MICROSTRUCTURE; THICKNESS; ADHESION; TIALN;

D O I：

10.1016/j.ceramint.2017.03.209

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Duplex-treated AlTiN coatings were deposited by advanced plasma assisted arc (APA-Arc) technology on pre-plasma nitrided AISI-H13 steel substrates using different N-2/H-2 flow ratios. The microstructures and properties of the AlTiN coatings were comprehensively characterized and analyzed. The results show that the N-2/H-2 flow ratios can tailor the thickness of compound layer during plasma nitriding process and the bright nitriding layer without compound layer is achieved. The properties of duplex-treated AlTiN coatings are well improved compared with monolayer AlTiN coating. The adhesion of the AlTiN coating is well enhanced by duplex treatment process, and adhesion grade increases from HF3-4 for monolayer AlTiN coating to HF1 for composite coatings. Moreover, the composite coatings with various thickness compound layers show different load-bearing capacities, and the interfacial adhesion force of the composite coating without compound layer reaches 61 N. The hardness of AlTiN coating is also enhanced by duplex treatment with the highest hardness of 2935 HV0.05. Meanwhile, tribological properties of AlTiN coatings are also slightly improved by duplex treatments.

引用

页码：8721 / 8729

页数：9

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