STRUCTURE AND PROPERTY OF POLYCRYSTALLINE (FE0.99MO0.01)78SI9B13 ALLOYS

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	STRUCTURE AND PROPERTY OF POLYCRYSTALLINE (FE0.99MO0.01)78SI9B13 ALLOYS
	X. D. Liu; J. T. Wang; D. H. Ping; D. X. Li
	1993
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	74 期号:7 页码:4501-4505
摘要	Polycrystalline Fe-Mo-Si-B alloys with grain sizes of 15-200 nm were synthesized via crystallization of the amorphous alloy. Positron lifetime results show that there are two existing types of interfacial defects in nanocrystalline Fe-Mo-Si-B alloys, namely free-volume-sized defects and nanovoids. The free-volume-sized defect shows almost no change in size or density during grain growth, and has a mean lifetime smaller than that of its amorphous counterpart as a result of structural relaxation in the process of crystallization. However, abnormal changes in size and density of nanovoids with grain growth were noticed. It is of great interest that the variations of intermediate lifetime tau2 and intensity ratio I1/I2 with the average grain size DBAR are exactly compatible with those of microhardness. A lower density of nanovoids corresponds to a larger microhardness in the case of the present alloy system.
部门归属	acad sinica,inst met res,state key lab atom imaging solids,shenyang 110015,peoples r china.;liu, xd (reprint author), acad sinica,inst met res,state key lab rsa,shenyang 110015,peoples r china
关键词	Positron Lifetime Spectroscopy Hall-petch Relationship Nanocrystalline Palladium Iron Metals
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/39075
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. D. Liu,J. T. Wang,D. H. Ping,et al. STRUCTURE AND PROPERTY OF POLYCRYSTALLINE (FE0.99MO0.01)78SI9B13 ALLOYS[J]. Journal of Applied Physics,1993,74(7):4501-4505.
APA	X. D. Liu,J. T. Wang,D. H. Ping,&D. X. Li.(1993).STRUCTURE AND PROPERTY OF POLYCRYSTALLINE (FE0.99MO0.01)78SI9B13 ALLOYS.Journal of Applied Physics,74(7),4501-4505.
MLA	X. D. Liu,et al."STRUCTURE AND PROPERTY OF POLYCRYSTALLINE (FE0.99MO0.01)78SI9B13 ALLOYS".Journal of Applied Physics 74.7(1993):4501-4505.