FATIGUE STRENGTH AND MICROSTRUCTURAL FEATURES OF SPRING STEEL

被引：0
|
作者：
Sustarsic, Borivoj [1 ]
Borkovic, Predrag [1 ]
Echlseder, Wifried [2 ]
Gerstmayr, Gerhard [2 ]
Javidi, Ataollah [2 ]
Sencic, Bojan [3 ]
机构：
[1] Inst Met & Technol, Ljubljana, Slovenia
[2] Inst Engn Mech, Leoben, Austria
[3] Store Steel, Store, Slovenia
来源：
STRUCTURAL INTEGRITY AND LIFE-INTEGRITET I VEK KONSTRUKCIJA | 2011年 / 11卷 / 01期
关键词：
spring steel; S-N curves; fatigue strength; notch effect; microstructure;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Knowledge about the local dynamic properties of steel, as well as the local loading conditions is absolutely necessary for the fatigue analysis and life time prediction of spring steel components. Mono-leaf and double-leaf springs of specific geometry made of 51CrV4 spring steel manufactured in the Slovenian steel plant Store Steel are of interest in this case. Fatigue strength of the selected steel is determined in different loading modes for two different heat treatment conditions and two outmost directions of segregations of alloying elements. Microstructural characterisation of the selected steel is performed, as well as fractographic examination of fractured surfaces. The experimental results enable fatigue life prediction of spring steels using the local stress gradient concept.
引用
收藏
页码：27 / 34
页数：8
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