采用Rockwell压痕和MTS研究了铸态和退火Zr41.2Ti13.8Cu12.5Ni10 Be22.5大块非晶的剪切带之间夹角和断裂面角度的关系.经过退火处理,压痕下剪切带之间的夹角(2(è)变化范围大约是88°～79°,而压缩断裂角((è)变化范围大约是44°～40°,其值刚好是压痕下剪切带之间夹角的一半.由Mohr-Coulomb准则可知,敏感因子的增加,正应力对剪切平面的作用显著增加,因而改变了剪切断裂的临界条件.
参考文献
| [1] | Johnson W L .[J].MRS Bulletin,1999,24:42. |
| [2] | Inoue A .[J].Acta Materialia,2000,48:279. |
| [3] | 喻更生,李伏,魏炳忱,马蓦,林建国.Nd60Al10Fe20Co10金属玻璃的变形行为[J].稀有金属材料与工程,2005(03):371-374. |
| [4] | Wright W J et al.[J].Materials Transactions,2001,42:642. |
| [5] | Bengus V Z et al.[J].Journal of Materials Science,1990,25:1598. |
| [6] | Davis L A et al.[J].Journal of Materials Science,1980,15:230. |
| [7] | He G et al.[J].Materials Transactions,2001,42:356. |
| [8] | Christopher A S et al.[J].Nature Materials,2003,2:449. |
| [9] | Vaidyanathan R et al.[J].Acta Materialia,2001,49:3781. |
| [10] | Zhang Z F et al.[J].Acta Materialia,2003,51:1167. |
| [11] | Trichy G R et al.[J].Scripta Materialia,2005,53:1461. |
| [12] | Tang Chunguang et al.[J].Materials Science and Engineering,2004,A215-223:384. |
| [13] | Johnson W L.Contact Mechanics[M].Cambridge:Cambridge University Press,1985 |
| [14] | Narasimhan R .[J].Mechanics of Materials,2004,36:633. |
| [15] | Christopher A S et al.[J].Nature Materials,2003,2:449. |
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