Mechanical responses of Mg-based bulk metallic glasses

NCU Institutional Repository > 工學院 > 材料科學與工程研究所 > 期刊論文 > Item 987654321/49997

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/49997

题名:	Mechanical responses of Mg-based bulk metallic glasses
作者:	Jian,SR;Li,JB;Chen,KW;Jang,JSC;Juang,JY;Wei,PJ;Lin,JF
贡献者:	材料科學與工程研究所
关键词:	PLASTIC-DEFORMATION;SUPERCOOLED LIQUID;AMORPHOUS-ALLOYS;SERRATED FLOW;NANOINDENTATION;INDENTATION;HARDNESS
日期:	2010
上传时间:	2012-03-27 16:28:30 (UTC+8)
出版者:	國立中央大學
摘要:	In this study, the mechanical responses of the bonded interface method derived Mg(58)Cu(28.5)Gd(11)Ag(2.5) bulk metallic glasses (BMG) under the micro-/nano-indentation are investigated. A modified expanding cavity model is developed to analyze the morphological observations of shear band by Vickers indentation. Results indicate that the radius ratio of any two adjacent shear band circles is approximately constant. The ratio of the shear band deformation zone to the contact radius induced by indentation is also a constant, which depends on the constraint factor (the ratio of hardness to yield strength) of the material. The features predicted by the present model are consistent with the results obtained from the indentation experiments, indicating the validity of the expanding cavity model for describing the mechanical behaviors of the BMG materials. The cross-sectional transmission electron microscopy (XTEM) observations reveal that the terraced shear bands are formed on the interface of the bonded Mg-based BMG. The microstructures for the Vickers indentation-induced terraced shear bands are also discussed. (C) 2010 Elsevier Ltd. All rights reserved.
關聯:	INTERMETALLICS
显示于类别:	[材料科學與工程研究所 ] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	520	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....