Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel

Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel

Ultra-long life fatigue behavior of SUJ2 bearing steel was studied by ultrasonic fatigue testing machine. The results show that, for the crack origin of composite oxide and TiCN,crack initiates from the interface between inclusion and matrix, and for the iron-chromium carbide crack origin, the inclu...

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Main Authors: LI Yong-de, ZHANG Li-li, ZHANG Chong, HE Ying-ying
Format: Article
Language:zho
Published: Journal of Materials Engineering 2016-08-01
Series:Journal of Materials Engineering
Subjects:
ultra-long life fatigue
inclusion
relative GBF size
crack propagation
Online Access:http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.08.014
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spelling doaj-be28c9c719384b4fb36fe522a475da912020-11-24T23:03:20ZzhoJournal of Materials EngineeringJournal of Materials Engineering1001-43811001-43812016-08-01448859210.11868/j.issn.1001-4381.2016.08.01420160814Ultra-long Life Fatigue Behavior of SUJ2 Bearing SteelLI Yong-de0ZHANG Li-li1ZHANG Chong2HE Ying-ying3Equipment Manufacturing College, Hebei University of Engineering, Handan 056038, Hebei, ChinaEquipment Manufacturing College, Hebei University of Engineering, Handan 056038, Hebei, ChinaShandong Analysis and Test Center, Jinan 250014, ChinaJiangsu Iron & Steel Research Institute(Shagang), Zhangjiagang 215625, Jiangsu, ChinaUltra-long life fatigue behavior of SUJ2 bearing steel was studied by ultrasonic fatigue testing machine. The results show that, for the crack origin of composite oxide and TiCN,crack initiates from the interface between inclusion and matrix, and for the iron-chromium carbide crack origin, the inclusion itself cracks. The relative GBF(granular bright facet) size is proportional to 1/Δ<i>K</i><sub>inc</sub><sup>2</sup>. GBF is no longer formed when Δ<i>K</i><sub>inc</sub>>8MPa&#183;m<sup>1/2</sup> for SUJ2 bearing steel. The crack propagation rule in GBF is obtained by data fitting, it is verified that Paris equation which can describe the crack growth in GBF is verified.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.08.014ultra-long life fatigueinclusionrelative GBF sizecrack propagation
collection DOAJ
language zho
format Article
sources DOAJ
author LI Yong-de
ZHANG Li-li
ZHANG Chong
HE Ying-ying
spellingShingle LI Yong-de
ZHANG Li-li
ZHANG Chong
HE Ying-ying
Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
Journal of Materials Engineering
ultra-long life fatigue
inclusion
relative GBF size
crack propagation
author_facet LI Yong-de
ZHANG Li-li
ZHANG Chong
HE Ying-ying
author_sort LI Yong-de
title Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
title_short Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
title_full Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
title_fullStr Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
title_full_unstemmed Ultra-long Life Fatigue Behavior of SUJ2 Bearing Steel
title_sort ultra-long life fatigue behavior of suj2 bearing steel
publisher Journal of Materials Engineering
series Journal of Materials Engineering
issn 1001-4381
1001-4381
publishDate 2016-08-01
description Ultra-long life fatigue behavior of SUJ2 bearing steel was studied by ultrasonic fatigue testing machine. The results show that, for the crack origin of composite oxide and TiCN,crack initiates from the interface between inclusion and matrix, and for the iron-chromium carbide crack origin, the inclusion itself cracks. The relative GBF(granular bright facet) size is proportional to 1/Δ<i>K</i><sub>inc</sub><sup>2</sup>. GBF is no longer formed when Δ<i>K</i><sub>inc</sub>>8MPa&#183;m<sup>1/2</sup> for SUJ2 bearing steel. The crack propagation rule in GBF is obtained by data fitting, it is verified that Paris equation which can describe the crack growth in GBF is verified.
topic ultra-long life fatigue
inclusion
relative GBF size
crack propagation
url http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.08.014
work_keys_str_mv AT liyongde ultralonglifefatiguebehaviorofsuj2bearingsteel
AT zhanglili ultralonglifefatiguebehaviorofsuj2bearingsteel
AT zhangchong ultralonglifefatiguebehaviorofsuj2bearingsteel
AT heyingying ultralonglifefatiguebehaviorofsuj2bearingsteel
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