Investigation of RCF failure prewarning of Fe-based coating by online monitoring

被引：13
作者：
Zhong-yu, Piao [1 ]
Bin-shi, Xu [2 ]
Hai-dou, Wang [2 ]
Dong-hui, Wen [1 ]
机构：
[1] Zhejiang Univ Technol, Minist Educ, Key Lab Special Purpose Equipment & Adv Proc Tech, Hangzhou 310014, Zhejiang, Peoples R China
[2] Acad Armored Forces Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2014年 / 72卷
关键词：
Rolling contact fatigue; Prewarning; Fe-based coating; Acoustic emission technique; ROLLING-CONTACT FATIGUE; CR ALLOY COATINGS; STEEL ROLLER; PLASMA; MECHANISM; THICKNESS; DAMAGE; MODES; GUN;
D O I：
10.1016/j.triboint.2013.12.016
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Rolling contact fatigue (RCF) tests of plasma sprayed Fe-based coatings were conducted on a ball-on-disc tester. Acoustic emission (AE) technique was used to monitor the whole process of RCF test. The status of AE signals was used as a criterion to calculate the prewarning lifetime. Typical AE response signals for RCF fractures were extracted and the prewarning mechanism was investigated. Results showed that the prewarning lifetime is obviously shorter than RCF failure lifetime. This indicates that AE sensor accurately gives an early alarm before the occurrence of failure. The difference of the prewarning initial lead was due to the different failure mechanism. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：156 / 160
页数：5
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