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Crack appearance of a laser shock-treated single crystal nickel-base superalloy after isothermal fatigue failure
Lu GX(卢国鑫); Liu JD(刘纪德); Qiao HC(乔红超); Jin T(金涛); Sun XF(孙晓峰)
Department装备制造技术研究室
Source PublicationSurface and Coatings Technology
ISSN0257-8972
2017
Volume321Pages:74-80
Indexed BySCI ; EI
EI Accession number20171703610671
WOS IDWOS:000405881900010
Contribution Rank3
Funding OrganizationHigh Technology Research and Development Program of China (no. 2014AA041701), the National Natural Science Foundation of China (nos. 51171179, 51271174, 51331005, 51501219, and 11332010) and the Natural Science Foundation of Liaoning Province in China (no. 2015020115).
KeywordNickel-base Superalloys Laser Shock Processing (Lsp) Fatigue Fracture
Abstract

Isothermal fatigue testing was conducted on single crystal nickel-base superalloys. Distinct cracking behaviors were found to occur in the specimens treated by different laser shock processing (LSP) technologies. A crack generally initiates from the casting micropore. For the well surface strengthened specimens suffered high laser shock intensities, the crack initially grows along one or more of the {111} planes and falls on the edge of the cylindrical specimen. For the poorly strengthened specimens, the final fracture area is usually located inside.

Language英语
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS KeywordThermomechanical Fatigue ; Deformation-behavior ; Microstructure ; Life
WOS Research AreaMaterials Science ; Physics
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/20425
Collection智能产线与系统研究室
Corresponding AuthorLiu JD(刘纪德); Jin T(金涛)
Affiliation1.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
2.Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
3.Shenyang Institute of Automation, Chinese Academy of Sciences, 114 Nanta Road, Shenyang 110016, China
Recommended Citation
GB/T 7714
Lu GX,Liu JD,Qiao HC,et al. Crack appearance of a laser shock-treated single crystal nickel-base superalloy after isothermal fatigue failure[J]. Surface and Coatings Technology,2017,321:74-80.
APA Lu GX,Liu JD,Qiao HC,Jin T,&Sun XF.(2017).Crack appearance of a laser shock-treated single crystal nickel-base superalloy after isothermal fatigue failure.Surface and Coatings Technology,321,74-80.
MLA Lu GX,et al."Crack appearance of a laser shock-treated single crystal nickel-base superalloy after isothermal fatigue failure".Surface and Coatings Technology 321(2017):74-80.
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