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

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

IMR OpenIR

	Microstructural evolution and mechanical properties of forged beta-solidified gamma-TiAl alloy by different heat treatments
	LI, Xiao-bing 1; Xu, Hao 2; Xing, Wei-wei 3; Chen, Bo 1; Shu, Lei 1; Zhang, Meng-shu 1; Liu, Kui 1
通讯作者	Chen, Bo(chenbo@jihualab.ac.cn)
	2022-07-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	32 期号:7 页码:2229-2242
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.
关键词	beta-solidifying gamma-TiAl alloy forge heat treatment microstructural evolution mechanical properties
资助者	Jihua Laboratory Scientific Research Project, China ; National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province of China
DOI	10.1016/S1003-6326(22)65943-0
收录类别	SCI
语种	英语
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
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000848487100002
出版者	ELSEVIER
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175101
专题	中国科学院金属研究所
通讯作者	Chen, Bo
作者单位	1.Ji Hua Lab, Adv Mfg Sci & Technol Guangdong Lab, Foshan 528200, Peoples R China 2.Nanjing Univ Sci & Technol, MIIT Key Lab Adv Met & Intermet Mat Technol, Nanjing 210094, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, 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.