Knowledge Management System of Institue of Mechanics, CAS
| Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass | |
Dai LH(戴兰宏) ; Bai YL(白以龙); Wei BC(魏炳忱); Yu GS; Dai, LH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China.
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| Source Publication | Intermetallics
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| 2005 | |
| Volume | 13Issue:8Pages:827-832 |
| ISSN | 0966-9795 |
| Abstract | Compressive deformation behavior of the Nd60Fe20Co10Al10 bulk metallic glass was characterized over a wide strain rate range (6.0 x 10(-4) to 1.0x10(3) s(-1)) at room temperature. Fracture stress was found to increase and fracture strain decrease with increasing applied strain rate. Serrated flow and a large number of shear bands were observed at the quasi-static strain rate (6.0 x 10(-4)s(-1)). The results suggest that the appearance of a large number of shear bands is probably associated with flow serration observed during compression; and both shear banding and flow serration are a strain accommodation and stress relaxation process. At dynamic strain rates (1.0 x 10(3) s(-1)), the rate of shear band nucleation is not sufficient to accommodate the applied strain rate and thus causes an early fracture of the test sample. The fracture behavior of the Nd60Fe20Co10Al10 bulk metallic glass is sensitive to strain rate. |
| Subject Area | 力学 |
| DOI | 10.1016/j.intermet.2005.01.012 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000229247500004 |
| WOS Keyword | AMORPHOUS-ALLOYS ; MECHANICAL-PROPERTIES ; THERMAL-STABILITY ; FORMING ABILITY ; CASTING METHOD ; SERRATED FLOW ; PLASTIC-FLOW ; FRACTURE ; NANOINDENTATION ; MICROSTRUCTURE |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/16886 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Dai, LH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Dai LH,Bai YL,Wei BC,et al. Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass[J]. Intermetallics,2005,13,8,:827-832. |
| APA | 戴兰宏,白以龙,魏炳忱,Yu GS,&Dai, LH .(2005).Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass.Intermetallics,13(8),827-832. |
| MLA | 戴兰宏,et al."Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass".Intermetallics 13.8(2005):827-832. |
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