Anomalous shear band characteristics and extra-deep shock-affected zone in Zr-based bulk metallic glass treated with nanosecond laser peening

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Anomalous shear band characteristics and extra-deep shock-affected zone in Zr-based bulk metallic glass treated with nanosecond laser peening
	Wei YP(魏延鹏); Xu GY; Zhang K(张坤); Yang Z; Guo YC; Huang CG(黄晨光); Wei BC(魏炳忱); Zhang, K; Zhang, K
刊名	SCIENTIFIC REPORTS
	2017-03-07
卷号	7
ISSN号	2045-2322
中文摘要	The effects of nanosecond laser peening on Zr41Ti14Cu12.5Ni10Be22.5 metallic glass were investigated in this study. The peening treatment produced an extra-deep shock-affected zone compared to crystal metal. As opposed to the conventional shear bands numerous arc shear bands appeared and aggregated in the vertical direction of the laser beam forming basic units for accommodating plastic deformation. The arc shear bands exhibited short and discrete features near the surface of the material then grew longer and fewer at deeper peened layer depths which was closely related to the laser shock wave attenuation. An energy dissipation model was established based on Hugoniot Elastic Limit and shear band characteristics to represent the formation of an extra-deep shock-affected zone. The results presented here suggest that the bulk modification of metallic glass with a considerable affected depth is feasible. Further they reveal that nanosecond laser peening is promising as an effective approach to tuning shear bands for improved MGs ductility.
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	MECHANICAL-PROPERTIES ; TENSILE DUCTILITY ; MATRIX COMPOSITES ; SURFACE-TREATMENT ; PLASTICITY ; COMPRESSION ; DEFORMATION ; IMPROVEMENT ; EVOLUTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000395915000001
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60573]
专题	力学研究所_流固耦合系统力学重点实验室(2012-) 力学研究所_国家微重力实验室
通讯作者	Zhang, K; Zhang, K
推荐引用方式 GB/T 7714	Wei YP,Xu GY,Zhang K,et al. Anomalous shear band characteristics and extra-deep shock-affected zone in Zr-based bulk metallic glass treated with nanosecond laser peening[J]. SCIENTIFIC REPORTS,2017,7.
APA	魏延鹏.,Xu GY.,张坤.,Yang Z.,Guo YC.,...&Zhang, K.(2017).Anomalous shear band characteristics and extra-deep shock-affected zone in Zr-based bulk metallic glass treated with nanosecond laser peening.SCIENTIFIC REPORTS,7.
MLA	魏延鹏,et al."Anomalous shear band characteristics and extra-deep shock-affected zone in Zr-based bulk metallic glass treated with nanosecond laser peening".SCIENTIFIC REPORTS 7(2017).