Evaluation of glass formation and critical casting diameter in Al-based metallic glasses

IMR OpenIR

	Evaluation of glass formation and critical casting diameter in Al-based metallic glasses
	Liao, J. P.; Yang, B. J.; Zhang, Y.; Lu, W. Y.; Gu, X. J.; Wang, J. Q.; jqwang@imr.ac.cn
	2015
发表期刊	MATERIALS & DESIGN
ISSN	0261-3069
卷号	88 页码:222-226
摘要	Critical cooling rate R-c for a series of Al-based glass formers, as well as cooling rate T' for copper-mold casting Al-based bulk metallic glass (BMG) samples, have been calculated. It is found that the glass forming ability (GFA) is reflected by the change of R-c value, and Al86Ni6Y4.5Co2La1.5 alloy, the best glass former in Al-based systems, holds the lowest R-c of about 3.01 x 10(3) K/s. The T' for the rod sample is determined by casting diameter D. When synthesizing Al-based BMGs, with the D increases from 1 mm to 3 mm, the value of T' decreases from 7.48 x 10(3) K/s to 0.83 x 10(3) K/s. Based on these calculations, the critical casting diameter D-c for a certain Al-rich multi-composition could be predicted. Further, for the composition Al86Ni6Y4.5Co2La1.5, bulk glassy sample with D-c up to 1.5 mm has been obtained, confirming the theoretical prediction. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[liao, j. p. ; yang, b. j. ; zhang, y. ; lu, w. y. ; wang, j. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [gu, x. j.] bucknell univ, dept mech engn, lewisburg, pa 17837 usa
关键词	Al-based Bulk Metallic Glasses Critical Cooling Rate Copper-mold Casting
资助者	National Nature Science Foundation of China [51131006, 51471166]
收录类别	sci
语种	英语
WOS记录号	WOS:000364257300028
引用统计	被引频次：39[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/321006/74834
专题	中国科学院金属研究所
通讯作者	jqwang@imr.ac.cn
推荐引用方式 GB/T 7714	Liao, J. P.,Yang, B. J.,Zhang, Y.,et al. Evaluation of glass formation and critical casting diameter in Al-based metallic glasses[J]. MATERIALS & DESIGN,2015,88:222-226.
APA	Liao, J. P..,Yang, B. J..,Zhang, Y..,Lu, W. Y..,Gu, X. J..,...&jqwang@imr.ac.cn.(2015).Evaluation of glass formation and critical casting diameter in Al-based metallic glasses.MATERIALS & DESIGN,88,222-226.
MLA	Liao, J. P.,et al."Evaluation of glass formation and critical casting diameter in Al-based metallic glasses".MATERIALS & DESIGN 88(2015):222-226.