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
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	468 期号:1-2 页码:179-186
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.
部门归属	[chen, c. l.; lu, w.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [chen, c. l.; lu, w.] chinese acad sci, grad sch, beijing 100049, peoples r china.;he, ll (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;llhe@imr.ac.cn
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
URL	查看原文
WOS记录号	WOS:000263080000039
引用统计	被引频次：13[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/321006/31818
专题	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.