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Failure Analysis on 42CrMo Steel Bolt Fracture
Joint Authors
Liu, Jingshun
Li, Congdong
Hongfei, Guo
Yan, Jianwei
Zhang, Ru
He, Zhihui
Zhao, Zengqi
Qu, Ting
Wan, Ming
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-01
Country of Publication
Egypt
No. of Pages
8
Abstract EN
Fracture behaviors of 42CrMo ultrahigh strength steel-based bolt have been experimentally studied including macroscopic and microscopic fracture observation, metallographic test, mechanical property testing, and energy spectrum analysis.
The results show that a large amount of structure defects, such as sulfide inclusions, band, and carbon depletion, appear in the fracture origin region and matrix of the bolt.
Such defects reduce fatigue strength of materials and easily yields fatigue fracture origin.
In addition, sulfide inclusions provide easy access to crack growth, gradually reducing the effective cross section of the bolt accompanying with increasing stress and finally causes fracture when stress exceeds the material fracture strength.
The fracture mechanism is also explored based on fracture failure criterion and fatigue crack growth curve.
American Psychological Association (APA)
Hongfei, Guo& Yan, Jianwei& Zhang, Ru& He, Zhihui& Zhao, Zengqi& Qu, Ting…[et al.]. 2019. Failure Analysis on 42CrMo Steel Bolt Fracture. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1119436
Modern Language Association (MLA)
Hongfei, Guo…[et al.]. Failure Analysis on 42CrMo Steel Bolt Fracture. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1119436
American Medical Association (AMA)
Hongfei, Guo& Yan, Jianwei& Zhang, Ru& He, Zhihui& Zhao, Zengqi& Qu, Ting…[et al.]. Failure Analysis on 42CrMo Steel Bolt Fracture. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1119436
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119436