Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65

doi:10.1016/j.jmst.2020.02.026

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65
	Zhang, Zhixin 1,3; Fan, Jiangkun 1,2; Tang, Bin 1,2; Kou, Hongchao 1,2; Wang, Jian 3; Wang, Xin 3; Wang, Shiying 4; Wang, Qingjiang 5; Chen, Zhiyong 5; Li, Jinshan 1,2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-07-15
卷号	49 页码:56-69
关键词	High temperature titanium alloy Hot deformation Microstructure evolution Texture FCC twin
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.02.026
通讯作者	Fan, Jiangkun(jkfan@nwpu.edu.cn) ; Li, Jinshan(ljsh@nwpu.edu.cn)
英文摘要	Although the development of titanium alloys with working temperatures above 600 degrees C faces enormous difficulties and challenges, the related research has not stopped. In the present work, detailed analyses on microstructure evolution and hot deformation behavior of a new temperature resistant 650 degrees C titanium alloy Ti65 were investigated from micrometer scale to nanometer scale. The results revealed that lamellar alpha grains gradually fragmentized and spheroidized during the alpha + beta phase region compression and the orientation of the c-axis of alpha grains gradually aligned to radial directions, forming two high Schmid factors (SFs) value texture eventually with the increase of strain to 0.7. Moreover, there were some strengthening characters in the alpha + beta phase region such as lenticular alpha(s) and nano silicide (TiZr)(6)Si-3. In the beta phase region, fine equiaxed dynamic recrystallized (DRX) beta grains were formed. Besides, the variant selection of alpha martensite followed Burgers orientation relationship during the compression process. The main deformation mechanisms of the alpha + beta phase region were dislocation slip and orientation dependent spheroidization. Whereas, the deformation process in the beta phase region was controlled by beta grain DRX. Interestingly, many nano scale FCC twins were generated at the interface of alpha lath during deforming in the beta phase region, which was firstly observed in Ti65 alloy. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Major State Research Development Program of China[2016YFB0701305] ; National Natural Science Foundation of China[51801156] ; Natural Science Basic Research Plan in Shaanxi Province ofChina[2018JQ5035] ; Natural Science Basic Research Plan in Shaanxi Province ofChina[2019JM-584]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000537326300008
资助机构	Major State Research Development Program of China ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province ofChina
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139183]
专题	金属研究所_中国科学院金属研究所
通讯作者	Fan, Jiangkun; Li, Jinshan
作者单位	1.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China 2.Natl & Local Joint Engn Res Ctr Precis Thermoform, Xian 710072, Shaanxi, Peoples R China 3.Baoti Grp Ltd, Baoji 721014, Shaanxi, Peoples R China 4.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhixin,Fan, Jiangkun,Tang, Bin,et al. Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,49:56-69.
APA	Zhang, Zhixin.,Fan, Jiangkun.,Tang, Bin.,Kou, Hongchao.,Wang, Jian.,...&Li, Jinshan.(2020).Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,49,56-69.
MLA	Zhang, Zhixin,et al."Microstructural evolution and FCC twinning behavior during hot deformation of high temperature titanium alloy Ti65".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 49(2020):56-69.