Stress-life fatigue behavior and fracture-surface morphology of a Cu-based bulk-metallic glass
文献类型：期刊论文
| 作者 | M. Freels ; P. K. Liaw ; G. Y. Wang ; Q. S. Zhang ; Z. Q. Hu |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2007 |
| 卷号 | 22期号:2页码:374-381 |
| 关键词 | crack propagation amorphous metal alloys deformation mechanisms composite |
| ISSN号 | 0884-2914 |
| 中文摘要 | The stress-life fatigue behavior and fracture morphology of a (CU60Zr30Ti10)(99)Sn-1 bulk-metallic glass alloy was investigated under both three-point and four-point bending conditions. For all stress levels tested, the fatigue lifetimes tended to be higher for the three-point loading condition. The fatigue endurance limits (defined as 107 cycles without failure), based on the applied stress range, for three-point and four-point loading conditions were approximately 475 MPa and 350 MPa, respectively. All fracture surfaces were found to be composed of four main regions: a crack-initiation site, a stable crack-growth region, an unstable fast-fracture region, and a melting region. Finely spaced parallel marks, similar to fatigue striations found in crystalline alloys, oriented somewhat perpendicular to the direction of crack propagation were observed in the stable crack-growth region. Analyses of these marks found that their spacing increased with increasing stress-intensity-factor range. Damage was found to initiate from preexisting defects present on or near the surface. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33538]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | M. Freels,P. K. Liaw,G. Y. Wang,et al. Stress-life fatigue behavior and fracture-surface morphology of a Cu-based bulk-metallic glass[J]. Journal of Materials Research,2007,22(2):374-381. |
| APA | M. Freels,P. K. Liaw,G. Y. Wang,Q. S. Zhang,&Z. Q. Hu.(2007).Stress-life fatigue behavior and fracture-surface morphology of a Cu-based bulk-metallic glass.Journal of Materials Research,22(2),374-381. |
| MLA | M. Freels,et al."Stress-life fatigue behavior and fracture-surface morphology of a Cu-based bulk-metallic glass".Journal of Materials Research 22.2(2007):374-381. |
入库方式： OAI收割
来源：金属研究所
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