Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments

doi:10.1016/S1003-6326(22)65943-0

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments
	LI, Xiao-bing 3; Xu, Hao 2; Xing, Wei-wei 1; Chen, Bo 3; Shu, Lei 3; Zhang, Meng-shu 3; Liu, Kui 3
刊名	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
	2022-07-01
卷号	32 期号:7 页码:2229-2242
关键词	beta-solidifying gamma-TiAl alloy forge heat treatment microstructural evolution mechanical properties
ISSN号	1003-6326
DOI	10.1016/S1003-6326(22)65943-0
通讯作者	Chen, Bo(chenbo@jihualab.ac.cn)
英文摘要	The microstructural evolution and tensile properties of a forged Ti-42Al-5Mn alloy subjected to different heat treatments were studied. The results showed that, when the forged alloy was aged at 800 degrees C for 24 h, the interlamellar spacing (lambda) and gamma grain size at colony boundaries are generally coarsened. Whereas, when the alloy was first annealed at 1300 degrees C and then aged at 800 degrees C for 24 h, this coarsening of related microstructures appears less pronounced. The suggested annealing temperatures for the forged Ti-42Al-5Mn alloy are in the range of 1250-1300 degrees C. It was found that, on the condition of the same annealing system, both the strength and ductility were improved as the aging temperature changed from 1000 to 800 degrees C. The secondary precipitated beta(o) (beta(o,sec)) at colony boundaries could be responsible for improving the strength, and the gamma phase at colony boundaries with the grain size about 6 mu m might be one of the main reasons for the better ductility.
资助项目	Jihua Laboratory Scientific Research Project, China[X210291TL210] ; National Natural Science Foundation of China[51971215] ; Natural Science Foundation of Liaoning Province of China[2019 -MS -330]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000848487100002
资助机构	Jihua Laboratory Scientific Research Project, China ; National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/175100]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, Bo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Nanjing Univ Sci & Technol, MIIT Key Lab Adv Met & Intermet Mat Technol, Nanjing 210094, Peoples R China 3.Ji Hua Lab, Adv Mfg Sci & Technol Guangdong Lab, Foshan 528200, Peoples R China
推荐引用方式 GB/T 7714	LI, Xiao-bing,Xu, Hao,Xing, Wei-wei,et al. Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(7):2229-2242.
APA	LI, Xiao-bing.,Xu, Hao.,Xing, Wei-wei.,Chen, Bo.,Shu, Lei.,...&Liu, Kui.(2022).Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(7),2229-2242.
MLA	LI, Xiao-bing,et al."Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.7(2022):2229-2242.