High-resolution image simulation of overlap structures in TiAl alloy

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	High-resolution image simulation of overlap structures in TiAl alloy
	C. L. Chen ; W. Lu ; Y. Y. Cui ; L. L. He ; H. Q. Ye
刊名	Journal of Alloys and Compounds
	2009
卷号	468 期号:1-2 页码:179-186
关键词	Intermetallics Scanning and transmission electron microscopy Crystal structural and symmetry gamma-titanium aluminides transmission electron-microscopy deformed ti-45al-10nb alloy mechanical-properties lamellar microstructure interfacial boundaries intermetallic alloys stacking-faults creep-behavior pst crystals
ISSN号	0925-8388
中文摘要	High-resolution electron microscopy (HREM) images of the overlap structures in TiAl have been studied by the comparisons of experimental techniques and theoretic simulations. Several misunderstandings about TiAl microstructures were corrected. First, studies revealed that the reported 9R structures in TiAl must result from the overlap of two twin-relaled gamma laths. They were not the true 9R structure. Second, the fringes (FR) between the gamma and alpha(2) phases have once been misconsidered as the stacking faults fringes which promoted the alpha(2) <-> gamma phase transformation, This work proved them lobe the fringes caused by the overlap of the alpha(2) and gamma phases. Through study of the imaging of the overlap structures, a new formation mechanism of the fringes has been proposed. (C) 2008 Elsevier B.V. All rights reserved.
原文出处	://WOS:000263080000039
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31818]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	C. L. Chen,W. Lu,Y. Y. Cui,et al. High-resolution image simulation of overlap structures in TiAl alloy[J]. Journal of Alloys and Compounds,2009,468(1-2):179-186.
APA	C. L. Chen,W. Lu,Y. Y. Cui,L. L. He,&H. Q. Ye.(2009).High-resolution image simulation of overlap structures in TiAl alloy.Journal of Alloys and Compounds,468(1-2),179-186.
MLA	C. L. Chen,et al."High-resolution image simulation of overlap structures in TiAl alloy".Journal of Alloys and Compounds 468.1-2(2009):179-186.