Grain-size dependent elastic-plastic deformation behaviour of inconel 625 alloy studied by in-situ neutron diffraction

doi:10.1016/j.intermet.2021.107340

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Grain-size dependent elastic-plastic deformation behaviour of inconel 625 alloy studied by in-situ neutron diffraction
	Gao, Yubi 1,4,5; Ding, Yutian 1,5; Li, Haifeng 6; Dong, Hongbiao 2; Zhang, Ruiyao 3; Li, Jun 2; Luo, Quanshun 4
刊名	INTERMETALLICS
	2021-11
卷号	138
关键词	Inconel 625 alloy Grain size Lattice strain Stacking fault Neutron diffraction
ISSN号	0966-9795
DOI	10.1016/j.intermet.2021.107340
英文摘要	The effect of grain size on elastic-plastic deformation and twinning behaviour of Inconel 625 alloy was studied. Alloy samples were investigated using compressive deformation analysis, in-situ neutron diffraction, electron backscatter diffraction, and transmission electron microscopy. The alloy was found to exhibit strong elastic and plastic anisotropy. Grain refining was found to have several advantages, including the increased grain-specific diffraction elastic moduli, improved compatibility and homogeneity of polycrystalline deformation, and enhanced yield strength at room temperature. Two strong preferred orientations were present in coarse-grained samples: the Copper orientation of {112} 111 112 , in elongated grains owing to deformation twinning. The coarse-grained samples also showed large quantities of stacking faults, multiple-slip lines, and dislocations. In contrast, stacking faults were not observed in fine-grained samples, however, a dense presence of slip lines, dislocations, and dislocation pileups at grain boundaries were observed. The fine-grained samples exhibited a higher density of dislocations than the coarse-grained samples given the same applied load during compressive deformation. The deformation mechanisms of the coarse-grained alloy were dominated by dislocation slipping and the formation of stacking faults, while the deformation of the fine-grained alloy showed only dislocation slipping.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000696575600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148537]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England; 3.Open Univ, Stress Map, Engn & Innovat, Milton Keynes MK7 6AA, Bucks, England; 4.Sheffield Hallam Univ, Mat & Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England 5.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China; 6.Gen Res Inst Nonferrous Met, State Key Lab Nonferrous Met & Proc, Beijing 100088, Peoples R China;
推荐引用方式 GB/T 7714	Gao, Yubi,Ding, Yutian,Li, Haifeng,et al. Grain-size dependent elastic-plastic deformation behaviour of inconel 625 alloy studied by in-situ neutron diffraction[J]. INTERMETALLICS,2021,138.
APA	Gao, Yubi.,Ding, Yutian.,Li, Haifeng.,Dong, Hongbiao.,Zhang, Ruiyao.,...&Luo, Quanshun.(2021).Grain-size dependent elastic-plastic deformation behaviour of inconel 625 alloy studied by in-situ neutron diffraction.INTERMETALLICS,138.
MLA	Gao, Yubi,et al."Grain-size dependent elastic-plastic deformation behaviour of inconel 625 alloy studied by in-situ neutron diffraction".INTERMETALLICS 138(2021).