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Declined Fatigue Crack Propagation Rate of a High-Strength Steel by Electropulsing Treatment
Ben, Dandan; Yang, Huajie; Ma, Yunrui; Wang, Qiang; Tian, Yanzhong; Zhang, Peng; Duan, Qiqiang; Zhang, Zhefeng
2019-07-01
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume21Issue:7
AbstractThe fatigue crack propagation behavior is a key issue for the service of engineering materials. The effect of electropulsing treatment (EPT) on the growth of fatigue crack in a high-strength steel (AISI 4340 steel) is investigated. It is shown that the crack propagation rate could be significantly declined via high-density EPT. The crack features of fracture surface are examined using laser scanning confocal microscopy (LSCM) and scanning electron microscopy (SEM). The crack deviation, local crack-healing and bridging phenomenon are proposed to be beneficial to lower the crack propagation rate, which should be brought out by the current detour, selective Joule heating, compressive stress, and electrical breakdown phenomenon. All these EPT effects exhibit significant contributions to the improvement of fatigue properties in the widely used high-strength steel.
Keywordcrack-healing crack propagation rate electropulsing fatigue high-strength steel
Indexed BySCI
Language英语
WOS IDWOS:000477974200048
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80930
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ben, Dandan,Yang, Huajie,Ma, Yunrui,et al. Declined Fatigue Crack Propagation Rate of a High-Strength Steel by Electropulsing Treatment[J]. ADVANCED ENGINEERING MATERIALS,2019,21(7).
APA Ben, Dandan.,Yang, Huajie.,Ma, Yunrui.,Wang, Qiang.,Tian, Yanzhong.,...&Zhang, Zhefeng.(2019).Declined Fatigue Crack Propagation Rate of a High-Strength Steel by Electropulsing Treatment.ADVANCED ENGINEERING MATERIALS,21(7).
MLA Ben, Dandan,et al."Declined Fatigue Crack Propagation Rate of a High-Strength Steel by Electropulsing Treatment".ADVANCED ENGINEERING MATERIALS 21.7(2019).
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