Microstructural development of a gas-atomized and hot-pressed super-alpha(2) alloy

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	Microstructural development of a gas-atomized and hot-pressed super-alpha(2) alloy
	R. Xu; Y. Y. Cui; D. M. Xu; D. Li; Q. C. Li; Z. Q. Hu
	1996
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	27 期号:8 页码:2221-2228
摘要	A variety of heat treatments have been employed to explore the microstructure in Ti-25Al-10Nb-3V-1Mo alloy prepared by gas atomization and hot pressing. These treatments include quenching by oil cooling and water cooling and aging at temperatures between 530 degrees C and 950 degrees C. Quenching transformations from the beta-phase field include the formation of O phase in oil quenching and beta (disordered) + O phase in water quenching. The metastable beta phase decomposes into O + ''omega'', O, or alpha(2) + beta(0)/B2 phase when the as-quenched alloy is aged at various temperatures. By comparing the selection area diffraction patterns, it has been found that the ordered omega phase in the alloy studied in this article is distinct in structure to the ''omega type'' (P3m1) and B8(2) phase which are formed in the parent matrix of the ordered beta(B2,D0(3)) phases. It has also been shown by X-ray diffraction (XRD) analyses that the lattice parameters of the as-aged O phase do not remain constant in the alloy at various temperatures.
部门归属	acad sinica,inst met res,titanium alloy lab,shenyang 110015,peoples r china.;xu, r (reprint author), harbin inst technol,sch mat sci & engn,harbin 150001,peoples r china
关键词	Al-nb Alloys Phase-transformations Ti3al
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38448
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. Xu,Y. Y. Cui,D. M. Xu,et al. Microstructural development of a gas-atomized and hot-pressed super-alpha(2) alloy[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,1996,27(8):2221-2228.
APA	R. Xu,Y. Y. Cui,D. M. Xu,D. Li,Q. C. Li,&Z. Q. Hu.(1996).Microstructural development of a gas-atomized and hot-pressed super-alpha(2) alloy.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,27(8),2221-2228.
MLA	R. Xu,et al."Microstructural development of a gas-atomized and hot-pressed super-alpha(2) alloy".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 27.8(1996):2221-2228.