Deformation Behaviour of Asymmetrically Fatigue Cycled Metallic Materials

被引：0
|
作者：
Dutta, Krishna [1 ]
Ray, Kalyan Kumar [1 ]
机构：
[1] Natl Inst Technol, Dept Met & Mat Engn, Rourkela 769008, India
来源：
MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE VII | 2014年 / 592-593卷
关键词：
Asymmetric fatigue; post-fatigue tensile properties; energy; fractography; STAINLESS-STEEL;
D O I：
10.4028/www.scientific.net/KEM.592-593.741
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This investigation aims to examine the influence of asymmetric fatigue cycling on the nature of strain accumulation and its influence on post fatigue tensile properties of three materials namely 6063 aluminum alloy, interstitial free steel and a-brass. The results highlight that strain accumulation provides improvement in yield and tensile strength of the investigated materials, with associated reduction in their %uniform elongation. However, %total elongation is found to be strong function of post-necking elongation which is governed by substructural features of the ratcheted material. Increase in strength values has been correlated with increased cyclic damage of the materials.
引用
收藏
页码：741 / 744
页数：4
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