Mechanical alloying and thermal stability of Al67Ti25M8 (M=Cr, Zr, Cu)

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	Mechanical alloying and thermal stability of Al67Ti25M8 (M=Cr, Zr, Cu)
	Fan, GJ; Song, XP; Quan, MX; Hu, ZQ
通讯作者	Fan, GJ()
	1997-07-15
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	231 期号:1-2 页码:111-116
摘要	By means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC) measurements, the sequence of the metastable phase formation and thermal stability of the mechanically alloyed Al67Ti25M8 (M = Cr, Zr, Cu) have been studied systematically. It was found that with the addition of Cr and Zr, nanocrystalline ordered Ll(2)-Al3TiM compounds were obtained after 40 h of milling. Subsequent annealing in the differential scanning calorimeter causes a grain growth process of the nanocrystallites. With the addition of Cu, the final product was nanocrystalline disordered Al(Ti,Cu) solid solution. Two types of instability upon thermal annealing for the nanocrystalline disordered Al(Ti,Cu) solid solution were observed: an instability against the grain growth; and an instability against L1(2) chemical ordering. The grain growth and L1(2) chemical ordering seem to occur simultaneously at temperatures in the range 400-700 degrees C. Our experimental results suggest that Cr and Zr may be promising alloying additions to stabilize the L1(2) structured Al3Ti compound for further application. (C) 1997 Elsevier Science S.A.
关键词	mechanical alloying thermal stability nanocrystalline
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:A1997XN04400015
出版者	ELSEVIER SCIENCE SA LAUSANNE
引用统计	被引频次：25[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/321006/126840
专题	中国科学院金属研究所
通讯作者	Fan, GJ
作者单位	CHINESE ACAD SCI,LAB 24TH,MET RES INST,SHENYANG 110015,PEOPLES R CHINA
推荐引用方式 GB/T 7714	Fan, GJ,Song, XP,Quan, MX,et al. Mechanical alloying and thermal stability of Al67Ti25M8 (M=Cr, Zr, Cu)[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1997,231(1-2):111-116.
APA	Fan, GJ,Song, XP,Quan, MX,&Hu, ZQ.(1997).Mechanical alloying and thermal stability of Al67Ti25M8 (M=Cr, Zr, Cu).MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,231(1-2),111-116.
MLA	Fan, GJ,et al."Mechanical alloying and thermal stability of Al67Ti25M8 (M=Cr, Zr, Cu)".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 231.1-2(1997):111-116.