Deformation-assisted decomposition of unstable Fe50Cu50 solid solution during low-energy ball milling

IMR OpenIR

	Deformation-assisted decomposition of unstable Fe50Cu50 solid solution during low-energy ball milling
	J. Xu; G. S. Collins; L. S. J. Peng; M. Atzmon
	1999
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	47 期号:4 页码:1241-1253
摘要	An unstable, fc.c. Fe50Cu50 solid solution was prepared using high-energy ball milling of an elemental powder mixture. It was used as a parent alloy for isothermal annealing or low-energy ball milling (LEBM), both at 373-523 K. Alloy evolution was analyzed by X-ray diffraction, Mossbauer spectroscopy and differential scanning calorimetry. LEBM significantly enhanced the initial decomposition rate, but the decomposition process was complex and not monotonic. At and below 423 K, the initial decomposition was completely reversed at later times. The results are interpreted in terms of an effective-temperature model proposed by Martin for irradiated alloys. A dynamic phase diagram in the effective temperature is presented, and used to explain the presence of a two-phase region under all milling conditions. The nonmonotonic behavior is suggested to be a result of coupling between phase evolution and mechanical properties, leading to a time dependence of the effective temperature. (C) 1999 Acta Metallurgica Inc. Published by Elsevier Science Ltd. AN rights reserved.
部门归属	univ michigan, dept nucl engn & radiol sci, ann arbor, mi 48109 usa. washington state univ, dept phys, pullman, wa 99164 usa. univ michigan, dept mat sci & engn, ann arbor, mi 48109 usa. chinese acad sci, inst met res, state key lab rsa, shenyang 110015, peoples r china.;atzmon, m (reprint author), univ michigan, dept nucl engn & radiol sci, ann arbor, mi 48109 usa
关键词	Fe-cu Alloys Crystalline-amorphous Transformations Absorption Fine-structure Magnetic-properties Thermal-stability Phase-transformations Immiscible Elements Ag-cu System Powders
URL	查看原文
WOS记录号	WOS:000079337600015
引用统计	被引频次：58[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/321006/37543
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Xu,G. S. Collins,L. S. J. Peng,et al. Deformation-assisted decomposition of unstable Fe50Cu50 solid solution during low-energy ball milling[J]. Acta Materialia,1999,47(4):1241-1253.
APA	J. Xu,G. S. Collins,L. S. J. Peng,&M. Atzmon.(1999).Deformation-assisted decomposition of unstable Fe50Cu50 solid solution during low-energy ball milling.Acta Materialia,47(4),1241-1253.
MLA	J. Xu,et al."Deformation-assisted decomposition of unstable Fe50Cu50 solid solution during low-energy ball milling".Acta Materialia 47.4(1999):1241-1253.