Investigation of high-cycle fatigue and fatigue crack propagation characteristic in 5083-O aluminum alloy

被引：38
作者：
Ma, Mingyang [1 ,2 ]
Zhang, Jiayi [1 ,2 ]
Yi, Danqing [1 ,2 ]
Wang, Bin [1 ]
机构：
[1] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
[2] Cent South Univ, Key Lab Nonferrous Mat, Minist Educ, Changsha 410083, Hunan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2019年 / 126卷
关键词：
Anisotropy; High cycle fatigue; Fatigue crack propagation; 5083-O aluminum alloy; SEMIQUANTITATIVE EVALUATION; TEXTURE COMPONENTS; GROWTH-BEHAVIOR; AL; STRENGTH; INITIATION; MICROSTRUCTURE; ANISOTROPY; DEFORMATION; PARTICLES;
D O I：
10.1016/j.ijfatigue.2019.05.020
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The objective of the present study is to investigate the high-cycle fatigue (HCF) and fatigue crack propagation (FCP) characteristic in relation to the microstructure in the 5083-O aluminum alloy. The FICF strengths of the 5083-O Al alloy in parallel to rolling direction (PD) and vertical to rolling direction (VD) specimens are 164 MPa and 165 MPa, respectively, However, the FCP resistance of the specimens reveals evident anisotropy. The FCP resistance of the PD specimen is less than that of the VD specimen, which is predominantly caused by the main crack expanding along the chain-shaped coarse inclusions in PD specimen. These chain-shaped coarse inclusions, particularly, Fe/Mn containing particles with secondary microcracks, might accelerate FCP rate and decrease FCP resistance.
引用
收藏
页码：357 / 368
页数：12
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