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Impact on mechanical properties and microstructural response of nickel-based superalloy gh4169 subjected to warm laser shock peening
Lu Y(陆莹)1,2; Yang YL(杨玉玲)3; Zhao JB(赵吉宾)1,2; Yang YQ(杨玉奇)1,2; Qiao HC(乔红超)1,2; Hu XL(胡宪亮)1,2; Wu JJ(吴嘉俊)1,2; Sun BY(孙博宇)1,2
Department工艺装备与智能机器人研究室
Source PublicationMaterials
ISSN1996-1944
2020
Volume13Issue:22Pages:1-13
Indexed BySCI ; EI
EI Accession number20204709506040
WOS IDWOS:000594893900001
Contribution Rank1
Funding OrganizationNSFC-Liaoning Province United Foundation (No. U1608259) ; Major State Scientific and Technological Projects (No.2018ZX04010001-003).
Keywordwarm laser shock peening (WLSP) GH4169 nickel-based superalloy microstructure residual stress
Abstract

Laser shock peening (LSP), as an innovative surface treatment technology, can effectively improve fatigue life, surface hardness, corrosion resistance, and residual compressive stress. Compared with laser shock peening, warm laser shock peening (WLSP) is a newer surface treatment technology used to improve materials’ surface performances, which takes advantage of thermal mechanical effects on stress strengthening and microstructure strengthening, resulting in a more stable distribution of residual compressive stress under the heating and cyclic loading process. In this paper, the microstructure of the GH4169 nickel superalloy processed by WLSP technology with different laser parameters was investigated. The proliferation and tangling of dislocations in GH4169 were observed, and the dislocation density increased after WLSP treatment. The influences of different treatments by LSP and WLSP on the microhardness distribution of the surface and along the cross-sectional depth were investigated. The microstructure evolution of the GH4169 alloy being shocked with WLSP was studied by TEM. The effect of temperature on the stability of the high-temperature microstructure and properties of the GH4169 alloy shocked by WLSP was investigated.

Language英语
WOS SubjectMaterials Science, Multidisciplinary
WOS KeywordTI-6AL-4V ; EVOLUTION ; BEHAVIOR ; SURFACE ; GROWTH
WOS Research AreaMaterials Science
Funding ProjectNSFC-Liaoning Province United Foundation[U1608259] ; Major State Scientific and Technological Projects
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/27911
Collection工艺装备与智能机器人研究室
Corresponding AuthorYang YL(杨玉玲); Zhao JB(赵吉宾)
Affiliation1.Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, China
2.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
3.College of Science, Northeastern University, Shenyang 110819, China
Recommended Citation
GB/T 7714
Lu Y,Yang YL,Zhao JB,et al. Impact on mechanical properties and microstructural response of nickel-based superalloy gh4169 subjected to warm laser shock peening[J]. Materials,2020,13(22):1-13.
APA Lu Y.,Yang YL.,Zhao JB.,Yang YQ.,Qiao HC.,...&Sun BY.(2020).Impact on mechanical properties and microstructural response of nickel-based superalloy gh4169 subjected to warm laser shock peening.Materials,13(22),1-13.
MLA Lu Y,et al."Impact on mechanical properties and microstructural response of nickel-based superalloy gh4169 subjected to warm laser shock peening".Materials 13.22(2020):1-13.
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