Study on the damage evolution of torsional fretting fatigue in a 7075 aluminum alloy | |
Department | 固体润滑国家重点实验室 |
Peng, Jinfang1,2; Jin, Xiao1; Xu, Zhibiao1; Zhang, Jun1; Cai, Zhenbing1; Luo, Zhiping3; Zhu, Minhao1 | |
2018 | |
Source Publication | Wear |
ISSN | 0043-1648 |
Volume | 402Pages:160-168 |
Abstract | A torsional fretting test of 7075 aluminum alloy is carried out on a fretting fatigue test rig, which is independently designed based on a multi-axis fatigue testing machine, and thus the S-N curve for this material is established. The damage regions of torsional fretting fatigue are analyzed with 3-D profilometer, Scanning Electron Microscopy and Electron Probe Microanalyzer. The results reveal the damage mechanism of the torsional fretting fatigue on different regimes, and the fatigue life is greatly reduced due to the fretting acting. The S-N curve of the torsional fretting fatigue presents characteristics of a Z-shaped curve. The coefficient of friction increases with the torque, while when the fretting is running in the mixed fretting and slipping regimes, oxidation of the damage regions near the loading end becomes severe, accompanying with micro-cracks; while in the partial slipping regime, the oxidation is mild without micro-cracks. |
Keyword | 7075 Aluminum Alloy Torsional Fretting Fatigue Damage Mechanism Micro-crack |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.wear.2018.02.008 |
Funding Organization | the National Natural Science Foundation of China (No. 51305364;No. 51575495;No. U1534209);Project of Traction Power State Key Laboratory of China (2015TPL_T15);Basic Project of Science and Technology Project of Sichuan, China (2015JY0137) |
Indexed By | SCI |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23628 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Peng, Jinfang |
Affiliation | 1.Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3.Department of Chemistry and Physics, Fayetteville State University, Fayetteville, NC 28301, USA |
Recommended Citation GB/T 7714 | Peng, Jinfang,Jin, Xiao,Xu, Zhibiao,et al. Study on the damage evolution of torsional fretting fatigue in a 7075 aluminum alloy[J]. Wear,2018,402:160-168. |
APA | Peng, Jinfang.,Jin, Xiao.,Xu, Zhibiao.,Zhang, Jun.,Cai, Zhenbing.,...&Zhu, Minhao.(2018).Study on the damage evolution of torsional fretting fatigue in a 7075 aluminum alloy.Wear,402,160-168. |
MLA | Peng, Jinfang,et al."Study on the damage evolution of torsional fretting fatigue in a 7075 aluminum alloy".Wear 402(2018):160-168. |
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