Fatigue behaviour of a multiphase medium carbon steel: Comparison between ferrite/pearlite and tempered microstructures

被引：3

作者：

Zhang, Yating ^{[1
,3
]}

Hu, Zheng ^{[4
,5
]}

Susmel, Luca ^{[5
]}

Zhang, Jing ^{[4
]}

Zhang, Kun ^{[1
,3
]}

Li, Yansen ^{[1
,3
]}

Wang, Yang ^{[1
,3
]}

Wei, Bingchen ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, CAS Key Lab Micrograv, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China

[4] China North Vehicle Res Inst, Sci & Technol Vehicle Transmiss Lab, Beijing 100072, Peoples R China

[5] Univ Sheffield, Dept Civil & Struct Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2020年 / 43卷 / 11期

基金：

中国国家自然科学基金;

关键词：

damping peak; fatigue crack growth; microstructure; HIGH-CYCLE FATIGUE; FERRITE-PEARLITE; CRACK GROWTH; STRENGTH;

D O I：

10.1111/ffe.13274

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue crack growth is the essential process in the total life of components and is unavoidable in most structures and machines. In this study, the effects of cementite particles on the fatigue properties of medium carbon steel were investigated. A quenching and tempering treatment was developed to obtain uniformly distributed cementite particles with dozens of nanometres. To evaluate the fatigue properties, fatigue strength, fatigue crack growth rate and dynamic mechanical behaviour were examined. It was found that the fatigue strength of the tempered steel is much higher than that of air cooling ferrite/pearlite steel because the cementite particles act as barriers and hinder crack propagation during cyclic loading. More importantly, the high sensitivity of the damping peak to prior fatigue may play an important role on the fatigue history of multiphase medium carbon steel.

引用

页码：2542 / 2549

页数：8

共 26 条

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