Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625

doi:10.1002/adem.201900426

	Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625
	Jia, Zhi 1,2; Gao, Zexi 1; Ji, Jinjin 3; Liu, Dexue 2; Guo, Tingbiao 2; Ding, Yutian 2
刊名	ADVANCED ENGINEERING MATERIALS
	2019-08-20
卷号	21 期号:9
关键词	dynamic recrystallization grain growth Inconel 625 twin boundary
ISSN号	1438-1656
DOI	10.1002/adem.201900426
英文摘要	Dynamic recrystallization (DRX) and grain growth behaviors of Inconel 625 alloy are investigated via hot compression test in the temperature range of 900-1200 degrees C and strain rate range of 0.01-10 s(-1). The electron backscatter distribution technique is an effective method for identifying twin boundary evolution on the basis of temperature and strain rate; this approach is applied in this study to investigate the effects of twins on the DRX process and grain growth. The fraction of DRX increases with temperature under all strain rates, but the strain rate exerts a complex effect on DRX. Grain size variation with temperature follows a similar trend of declining and then increasing, whereas no apparent trend is observed at various strain rates. The DRX mechanism of the Inconel 625 alloy shifts from discontinuous DRX to continuous DRX with a reduction in deformation temperature and increase in strain rate. The fraction of sigma 3(n) (n = 1, 2, 3) boundaries (twin boundaries) increases with increasing temperature at low temperatures (<1100 degrees C), but declines with increasing temperature at high temperatures (>= 1100 degrees C). At low temperatures (<1100 degrees C), the fraction of sigma 3(n) (n = 1, 2, 3) boundaries declines with an increasing strain rate up to 1 s(-1) and then increases.
资助项目	National Nature Science Foundation of China[51665032] ; Science Foundation for Distinguished Young Scholars of Gansu Province[18JR3RA134] ; Nation Natural Science Foundation of China[51664041]
WOS研究方向	Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000482309900001
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31634]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Jia, Zhi
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 3.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Jia, Zhi,Gao, Zexi,Ji, Jinjin,et al. Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625[J]. ADVANCED ENGINEERING MATERIALS,2019,21(9).
APA	Jia, Zhi,Gao, Zexi,Ji, Jinjin,Liu, Dexue,Guo, Tingbiao,&Ding, Yutian.(2019).Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625.ADVANCED ENGINEERING MATERIALS,21(9).
MLA	Jia, Zhi,et al."Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625".ADVANCED ENGINEERING MATERIALS 21.9(2019).