High Plasticity and Substantial Deformation in Nanocrystalline NiFe Alloys Under Dynamic Loading
High Plasticity and Substantial Deformation in Nanocrystalline NiFe Alloys Under Dynamic Loading
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DOI：
10.1002/adma.200901991
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发表时间：
2009-12-28
影响因子：
29.4
通讯作者：
Lavernia, Enrique J.
中科院分区：
文献类型：
--
作者：
Cheng, Sheng;Zhao, Yonghao;Lavernia, Enrique J.
提出了一种纳米晶（NC） NiFe合金，通过动态加载诱导的去孪晶（即孪晶密度降低）变形机制和显著的晶粒粗化（见图），该合金的塑性和强度都得到了极大的提高。这项工作突出了潜在的巧妙途径，以利用数控材料在极端条件下的优越行为。
A nanocrystalline (NC) NiFe alloy is presented, in which both highly improved plasticity and strength are achieved by the dynamic-loading-induced deformation mechanisms of de-twinning (that is, reduction of twin density) and significant grain coarsening (see figure). This work highlights potential ingenious avenues to exploit the superior behavior of NC materials under extreme conditions.