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	Tensile properties of a cast TiAl alloy with directional lamellar microstructures
	Li, Sheng1; Zhu, Chunlei1; Cao, Rui2; Zhang, Ji1
	2013
会议日期	December 22, 2012 - December 23, 2012
会议地点	Beihai, China
关键词	Ductility Microstructure Tensile properties Titanium alloys Ambient ductility Critical value Fracture surfaces High temperature Lamellar microstructure Room temperature Strength and ductilities Strength retention Tensile fractures TiAl alloy
卷号	652-654
DOI	10.4028/www.scientific.net/AMR.652-654.1063
页码	1063-1066
英文摘要	A cast TiAl alloy with directional γ-TiAl/α2-Ti3Al lamellar microstructure showed excellent strength retention at high temperatures and distinguished ambient ductility level as well. But both the ductility and strength at room temperature exhibited somewhat undulation. According to the microstructure and fracture surface observations, the negative diversification of the test results is attributed to the presence of mis-oriented lamellar colonies. The tilted lamellar colonies larger than a critical value can trigger the tensile fractures and therefore diminish the tensile strength and ductility significantly. © (2013) Trans Tech Publications, Switzerland.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117736]
专题	省部共建有色金属先进加工与再利用国家重点实验室 材料科学与工程学院
作者单位	1.Beijing Key Laboratory of High Temperature Materials, China Iron and Steel Research Institute Group, No. 76 Xueyuan Nanlu, Beijing 100081, China; 2.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Li, Sheng,Zhu, Chunlei,Cao, Rui,et al. Tensile properties of a cast TiAl alloy with directional lamellar microstructures[C]. 见:. Beihai, China. December 22, 2012 - December 23, 2012.

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