Mechanisms for the free volume tuning the mechanical properties of metallic glass through ion irradiation

doi:10.1016/j.intermet.2018.08.006

	Mechanisms for the free volume tuning the mechanical properties of metallic glass through ion irradiation
	Hu, ZY; Yan, XQ; Cao, XZ; Shao, L; Cao XZ(曹兴忠); Wang, YG; Qiu, YH; Xu, C; Fu, EG; Wang, PP
刊名	INTERMETALLICS
	2018
卷号	101 页码:173-178
关键词	Metallic glass Nanoindentation Ion irradiation Free volume
ISSN号	0966-9795
DOI	10.1016/j.intermet.2018.08.006
文献子类	Article
英文摘要	The irradiation response of metallic glass Ni50Nb10Zr15Ti15Pt7.5Cu2.5 under 3 MeV Au ion irradiation was studied. Significant hardness decrease was observed under low dose irradiation. However, the hardness restores to the level of unirradiated sample under higher dose irradiation. Positron annihilation Doppler broadening results indicate that ion bombardment would destroy the short range order (SRO) in metallic glass and introduce excessive free volume under low dose irradiation. While the formation of local ordered structure would consume the free volume due to enhanced atom mobility under higher dose irradiation. Our results help to understand the mechanism of the irradiation effect in metallic glass, and moderate ion radiation can be an efficient way to improve the mechanical property of metallic glass by introducing free volume in metallic glass.
电子版国际标准刊号	1879-0216
WOS关键词	POSITRON-ANNIHILATION SPECTROSCOPY ; TENSILE DUCTILITY ; SHEAR BANDS ; ALLOYS ; EMBRITTLEMENT ; TEMPERATURE ; PLASTICITY ; TRANSFORMATION ; STRENGTH ; SURFACES
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000444665100021
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286325]
专题	高能物理研究所_加速器中心高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Hu, ZY,Yan, XQ,Cao, XZ,et al. Mechanisms for the free volume tuning the mechanical properties of metallic glass through ion irradiation[J]. INTERMETALLICS,2018,101:173-178.
APA	Hu, ZY.,Yan, XQ.,Cao, XZ.,Shao, L.,曹兴忠.,...&Du, JL.(2018).Mechanisms for the free volume tuning the mechanical properties of metallic glass through ion irradiation.INTERMETALLICS,101,173-178.
MLA	Hu, ZY,et al."Mechanisms for the free volume tuning the mechanical properties of metallic glass through ion irradiation".INTERMETALLICS 101(2018):173-178.