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Vickers-indentation-induced crystallization in a metallic glass
Z. J.; Hu Yan, Y.; Song, K. K.; Dai, F. P.; He, J.; Eckert, J.
2015
Source PublicationApplied Physics Letters
ISSN0003-6951
Volume106Issue:10
AbstractCrystallization preferentially occurs on the compressive sides of some metallic glasses due to bending, implying that stress state is a critical factor affecting the mechanically induced crystallization. However, the role of stress state in mechanically induced crystallization in metallic glasses is poorly understood. Here, we report on the crystallization kinetics in different deformed regions during Vickers indentation of Zr65Al7.5Ni10Cu12.5Ag5 metallic glass. Our results indicate that the nucleation rate beneath the indenter tip is much higher than that under an indenter edge. It is revealed that the nucleation rate I (m(-3) s(-1)) and the effective compressive stress P (MPa) follow an expression I = exp(3.81 + 0.044 P), which agrees well with our experimental results. Our findings reduce the role of stress state in mechanically induced crystallization in metallic glasses, which is helpful in understanding the mechanism of mechanically induced crystallization. (C) 2015 AIP Publishing LLC.
description.department[yan, zhijie ; hu, yong] taiyuan univ sci & technol, sch mat sci & engn, taiyuan 030024, peoples r china. [yan, zhijie ; song, kaikai ; dai, fuping ; he, jie ; eckert, juergen] ifw dresden, inst komplexe mat, d-01069 dresden, germany. [song, kaikai ; dai, fuping] northwestern polytech univ, xian 710072, peoples r china. [he, jie] chinese acad sci, inst met res, shenyang 110016, peoples r china. [eckert, juergen] tech univ dresden, inst werkstoffwissensch, d-01062 dresden, germany. ; yan, zj (reprint author), taiyuan univ sci & technol, sch mat sci & engn, taiyuan 030024, peoples r china. ; ifwzjyan@gmail.com
KeywordInduced Nanocrystal Formation Bulk Amorphous-alloys Numerical-simulation Supercooled Liquids Room-temperature Deformation Microstructure Composites Al90fe5gd5 Plasticity
URL查看原文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73995
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Z. J.,Hu Yan, Y.,Song, K. K.,et al. Vickers-indentation-induced crystallization in a metallic glass[J]. Applied Physics Letters,2015,106(10).
APA Z. J.,Hu Yan, Y.,Song, K. K.,Dai, F. P.,He, J.,&Eckert, J..(2015).Vickers-indentation-induced crystallization in a metallic glass.Applied Physics Letters,106(10).
MLA Z. J.,et al."Vickers-indentation-induced crystallization in a metallic glass".Applied Physics Letters 106.10(2015).
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