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Nonuniformity of morphology and mechanical properties on the surface of single crystal superalloy subjected to laser shock peening
Lu GX(卢国鑫); Liu JD(刘纪德); Qiao HC(乔红超); Zhou YZ(周亦胄); Jin T(金涛); Sun XF(孙晓峰); Hu ZQ(胡壮麒)
作者部门装备制造技术研究室
关键词Single Crystal Superalloy Laser Shock Peening Surface Relief Microhardness
发表期刊Journal of Alloys and Compounds
ISSN0925-8388
2016
卷号658页码:721-725
收录类别SCI ; EI
EI收录号20154701590224
WOS记录号WOS:000366940100100
产权排序2
资助机构High Technology Research and Development Program of China (No. 2014AA041701) and the National Natural Science Foundation of China (NSFC) under Grant No. 51171179, 51271174, 51331005, and 11332010.
摘要

Surface topography and microhardness of a Ni-based single crystal superalloy subjected to laser shock peening (LSP) were investigated. So many morphological surface reliefs were found on the shocked surface, and a microscopic formation mechanism of those surface reliefs was proposed. The formation of surface reliefs can be attributed to the plastic deformation of γ' precipitates and γ matrix channels in the lateral or longitudinal directions. The nonuniformity of structures of the deformed surface layer was ascribed to the formation of surface reliefs. The microhardness of surface reliefs was higher than that of adjacent matrixes, so a nonuniformity of micromechanical properties coexisted on the surface of sample subjected to LSP. With the increase of LSP impact times, micromechanical properties difference between surface reliefs and adjacent matrixes widened due to a very high proportion of the longitudinal deformation of γ' phases contained in the surface relief structures.

语种英语
WOS标题词Science & Technology ; Physical Sciences ; Technology
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
关键词[WOS]Austenitic Stainless-steel ; Fracture-toughness ; Aluminum-alloy ; Fatigue ; Growth ; Microstructure ; Roughness ; Integrity ; Behavior
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/17315
专题装备制造技术研究室
通讯作者Liu JD(刘纪德)
作者单位1.Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, China
2.Shenyang Institute of Automation, Chinese Academy of Sciences, 114 Nanta Road, Shenyang, China
推荐引用方式
GB/T 7714
Lu GX,Liu JD,Qiao HC,et al. Nonuniformity of morphology and mechanical properties on the surface of single crystal superalloy subjected to laser shock peening[J]. Journal of Alloys and Compounds,2016,658:721-725.
APA Lu GX.,Liu JD.,Qiao HC.,Zhou YZ.,Jin T.,...&Hu ZQ.(2016).Nonuniformity of morphology and mechanical properties on the surface of single crystal superalloy subjected to laser shock peening.Journal of Alloys and Compounds,658,721-725.
MLA Lu GX,et al."Nonuniformity of morphology and mechanical properties on the surface of single crystal superalloy subjected to laser shock peening".Journal of Alloys and Compounds 658(2016):721-725.
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