An optimization criterion for fatigue strength of metallic materials

被引：14
|
作者：
Wang, B. [1 ,2 ,3 ]
Zhang, P. [1 ]
Liu, R. [1 ]
Duan, Q. Q. [1 ]
Zhang, Z. J. [1 ]
Li, X. W. [2 ,3 ]
Zhang, Z. F. [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Mat Fatigue & Fracture Div, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
[2] Northeastern Univ, Dept Mat Phys & Chem, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
[3] Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 736卷
基金：
国家重点研发计划;
关键词：
Ultimate tensile strength; Work-hardening ability; Uniform elongation; Fatigue strength; ULTRAFINE-GRAINED CU; MECHANICAL-PROPERTIES; PLASTIC INSTABILITY; COPPER-ALLOYS; AL ALLOYS; NANOCRYSTALLINE; DUCTILITY; STEEL; IRRADIATION; BEHAVIORS;
D O I：
10.1016/j.msea.2018.08.085
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, a criterion for optimizing the fatigue strength of metallic materials is proposed, and verified by many experimental results. The strategy for optimizing the fatigue strength is to continuously increase the ultimate tensile strength (UTS) under the condition of keeping certain work-hardening abilities. It is found that the relationship between the true UTS and true uniform elongation can be described by two straight lines, and the optimal fatigue strength can be obtained at the point where the two straight lines intersect with each other. This study has great guiding significance for economizing time and money to optimize the fatigue strength of metallic materials.
引用
收藏
页码：105 / 110
页数：6
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