Structure and water-lubricated tribological properties of Cr/a-C coatings with different Cr contents

被引：27
作者：
Wang, Qianzhi [1 ]
Zhou, Fei [1 ,2 ,3 ]
Ding, Xiangdong [2 ]
Zhou, Zhifeng [4 ]
Wang, Chundong [3 ]
Zhang, Wenjun [3 ]
Li, Lawrence Kwok-Yan [4 ]
Lee, Shuit-Tong [5 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[3] City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
[4] City Univ Hong Kong, Dept Mech & Biomed Engn, Adv Coatings Appl Res Lab, Kowloon, Hong Kong, Peoples R China
[5] Soochow Univ, Coll Nanosci & Technol, Inst Funct Nano & Soft Mat, Suzhou 215006, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2013年 / 67卷
基金：
中国国家自然科学基金;
关键词：
Hydrogen-free carbon based coatings; Mechanical properties; Microstructure; Tribology; DIAMOND-LIKE CARBON; A-CNX COATINGS; INCORPORATED DLC FILMS; WEAR PROPERTY; AIR ENVIRONMENTS; SI3N4; BALLS; FRICTION; STEEL; BEHAVIOR; MICROSTRUCTURE;
D O I：
10.1016/j.triboint.2013.07.002
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The Cr containing amorphous carbon coatings (Cr/a-C) with varying Cr content were deposited using unbalanced magnetron sputtering. The results revealed that the chromium carbide nano-clusters were formed when the Cr content exceeded 4.9 at%. The critical load increased while the hardness decreased after the Cr element incorporation. Although the low Cr containing Cr/a-C coatings (<= 4.9 at%) exhibited similar friction coefficient with a-C coatings, but the initial friction coefficient, running-in distance and wear rate of SUS440C balls all decreased. However, the Cr/a-C coatings with high Cr content (11.98-14.09 at%) would worsen the tribological properties because chromium carbides acted as abrasive wear particles during tribotests. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：104 / 115
页数：12
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