Anisotropy of small punch creep performance of selective laser melted GH4169 at 650 C

doi:10.1016/j.msea.2020.140608

CORC > 金属研究所 > 中国科学院金属研究所

	Anisotropy of small punch creep performance of selective laser melted GH4169 at 650 C
	Ma, Tao 1; Zhang, Bin 1; Wang, Li-Yi 2; Song, Zhu-Man 2; Luo, Xue-Mei 2; Liu, Chang-Sheng 1; Zhang, Guang-Ping 2
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2021-03-04
卷号	806 页码:11
关键词	Selective laser melting GH4169 Small punch creep Anisotropy Recrystallization
ISSN号	0921-5093
DOI	10.1016/j.msea.2020.140608
通讯作者	Zhang, Bin(zhangb@atm.neu.edu.cn) ; Zhang, Guang-Ping(gpzhang@imr.ac.cn)
英文摘要	The large temperature gradient and the epitaxial growth of grains during selective laser melting process usually lead to the mechanical anisotropy of metal parts. To evaluate creep anisotropy of selective laser melting fabricated GH4169 alloy, in this paper creep performance of GH4169 was investigated by means of small punch creep test method. The effect of the small punch loading-induced prestrain on creep properties of the specimens was examined. The results indicate that under the same heat-treatment and the loading conditions, the small punch creep specimens loaded along the building direction have the longer creep life and the larger creep plasticity than the ones loaded along the scanning direction. The finding reveals that loading deformation induced dynamic recrystallization has a significant effect on improving creep properties by weakening anisotropy properly. The small punch creep properties of the specimens loaded along the building direction superior to that of the specimens loaded along the scanning direction are mainly attributed to the higher deformability of heterogeneous microstructure, the lower recrystallization activation energy and the deformation activation energy.
资助项目	National Key R&D Program of China[2017YFB0305800] ; National Natural Science Foundation of China (NSFC)[51671050] ; National Natural Science Foundation of China (NSFC)[51971060] ; National Natural Science Foundation of China (NSFC)[51771207] ; Fundamental Research Project of Shenyang National Laboratory for Materials Science[L2019R18] ; project of 'Manufacturing the swirl nozzles of the high pressure turbine by selective laser melting'
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000620938800002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Project of Shenyang National Laboratory for Materials Science ; project of 'Manufacturing the swirl nozzles of the high pressure turbine by selective laser melting'
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160921]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Bin; Zhang, Guang-Ping
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, Tao,Zhang, Bin,Wang, Li-Yi,et al. Anisotropy of small punch creep performance of selective laser melted GH4169 at 650 C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,806:11.
APA	Ma, Tao.,Zhang, Bin.,Wang, Li-Yi.,Song, Zhu-Man.,Luo, Xue-Mei.,...&Zhang, Guang-Ping.(2021).Anisotropy of small punch creep performance of selective laser melted GH4169 at 650 C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,806,11.
MLA	Ma, Tao,et al."Anisotropy of small punch creep performance of selective laser melted GH4169 at 650 C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 806(2021):11.