Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses | |
Xing DM(邢冬梅); Zhang TH(张泰华); Li WH(李维火); Wei BC(魏炳忱) | |
刊名 | Science In China Series E-Technological Sciences |
2005 | |
通讯作者邮箱 | Zhangth@lnm.imech.ac.cn |
卷号 | 49期号:4页码:414-424 |
ISSN号 | 1006-9321 |
通讯作者 | Zhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China. |
中文摘要 | Plastic deformation behaviors of Zr65Al10Ni10CU15 and Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glasses (BMGs) are studied by using the depth-sensing nanoindentation, microindentation and uniaxial compression. The Be-containing BMG exhibits a significantly improved overall plastic strain compared with the Be-free alloy during compressive tests. Both BMGs show a loading-rate-dependent serrated flow during nanoindentation measurements, but the Be-containing alloy exhibits a much lower critical loading rate for the disappearance of the serration than the Be-free BMG. The shear band patterns developed during plastic deformation are investigated by microindentation technique, wherein much higher shear band density is found in the Be-containing alloy than in the Be-free alloy, indicating an easier nucleation of shear bands in the former BMG. The difference in the plastic deformation behavior of the two BMGs can be explained by a free volume model. |
学科主题 | 力学 |
类目[WOS] | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
研究领域[WOS] | Engineering ; Materials Science |
关键词[WOS] | FREE-VOLUME MODEL ; SERRATED FLOW ; NANOINDENTATION ; TRANSITION ; ALLOYS ; LIQUID |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000240411000005 |
公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/17236] |
专题 | 力学研究所_力学所知识产出(1956-2008) |
推荐引用方式 GB/T 7714 | Xing DM,Zhang TH,Li WH,et al. Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses[J]. Science In China Series E-Technological Sciences,2005,49(4):414-424. |
APA | 邢冬梅,张泰华,李维火,&魏炳忱.(2005).Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses.Science In China Series E-Technological Sciences,49(4),414-424. |
MLA | 邢冬梅,et al."Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses".Science In China Series E-Technological Sciences 49.4(2005):414-424. |
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