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research-article

Effect of rolling strain on the mechanical and tribological properties of 316L stainless steel

[+] Author and Article Information
Wenbo Qin

School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
qwb_strive@126.com

Jiansheng Li

Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
drlijiansheng@163.com

Yaoyao Liu

School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
lyy_strive@126.com

Wen Yue

School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; National International Joint Research Center of Deep Geodrilling Equipment, China University of Geosciences (Beijing), Beijing 100083, China
cugbyw@163.com
yw@cugb.edu.cn

Chengbiao Wang

School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; National International Joint Research Center of Deep Geodrilling Equipment, China University of Geosciences (Beijing), Beijing 100083, China
cbwang@cugb.edu.cn

Qingzhong Mao

Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
1170949653@qq.com

Yusheng Li

Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
liyusheng@njust.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4041214 History: Received May 21, 2018; Revised August 08, 2018

Abstract

The mechanical and tribological performances of 316L austenitic stainless steel subjected to different cold rolling strain were investigated. The micro-hardness and strength of 316L stainless steel were improved with the formation of high-density defects, such as dislocations and parallel lamellar structures. Furthermore, the tribology tests were conducted under dry sliding at room temperature. With the increasing rolling strain, the wear rate of 316L stainless steel gradually decreased due to the improvements of micro-hardness and strength. For the as-received specimen, the strong adhesive wear leads to the maximum wear rate compared with the cold rolled specimens. Under higher rolling strain conditions, the grain boundary enbrittlement caused by oxygen reaction leads to the formation of oxidative abrasive under dry sliding conditions, and then the oxidative abrasive could serve as the three-body occurred in siding interface. Consequently, there is a transfer process where the wear mechanisms gradually shift from adhesive wear to abrasive wear.

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