Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing

doi:10.1007/s11665-020-04909-4

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	Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing
	Gan, Hong-yan 2,4; Cheng, Ming 4; Guo, Zhen-xing 1; Tai, Qing-an 1; Kozhevnikova, Grazhina 3; Song, Hong-wu 4; Zhang, Shi-hong 4
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2020-06-01
卷号	29 期号:6 页码:3852-3857
关键词	Delta Process Inconel 718 lamellar delta phase spheroidization
ISSN号	1059-9495
DOI	10.1007/s11665-020-04909-4
通讯作者	Zhang, Shi-hong(shzhang@imr.ac.cn)
英文摘要	The morphology evolution of lamellar delta phase in Inconel 718 during Delta Processing was characterized by scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy. A spheroidization mechanism is proposed for transformation of the lamellar delta phase. The results showed that lamellar delta phase hindered the movement of dislocations, which led to a dislocation aggregation zone around the fracture location of the delta phase. Strain in the region thus increased, which promoted the occurrence of dynamic recrystallization and fracture of the lamellar delta phase. A diffusion channel for Nb atoms was simultaneously provided by the high-density dislocations, which led to dissolution and reduction in the amount of delta phase. Under the combined action of deformation, fracture, and dissolution, the lamellar delta phase gradually transformed into granular short rods and spheroids.
资助项目	National Natural Science Foundation of China[51505240] ; Sino-Belarus Inter-Governmental Science and Technology Cooperation project[CB02-09] ; Chinese National Key Research and Development Plan[SQ2018YFE011170]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000542083100001
资助机构	National Natural Science Foundation of China ; Sino-Belarus Inter-Governmental Science and Technology Cooperation project ; Chinese National Key Research and Development Plan
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139552]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Shi-hong
作者单位	1.AECC Shenyang Li Ming Aeroengine Grp Co Ltd, Shenyang 110043, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Natl Acad Sci Belarus, Phys Tech Inst, Minsk 220141, BELARUS 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gan, Hong-yan,Cheng, Ming,Guo, Zhen-xing,et al. Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2020,29(6):3852-3857.
APA	Gan, Hong-yan.,Cheng, Ming.,Guo, Zhen-xing.,Tai, Qing-an.,Kozhevnikova, Grazhina.,...&Zhang, Shi-hong.(2020).Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,29(6),3852-3857.
MLA	Gan, Hong-yan,et al."Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 29.6(2020):3852-3857.