极端弥散析出造就超强钢

超高强度的可塑钢铁是汽车和能源等行业中的重要材料。
马氏体时效钢是其中一类重要的原料，它们是通过半共格析出的金属间化合物析出物获得强度的。


本文呈现的马氏体时效钢用价廉质轻的铝完全代替了昂贵的钴和钛合金元素，
在钢材中生成了高密度、晶格失配应变极小的析出物，获得了杰出的性能组合——强度高达2.2GPa，可塑性约为8.2%。


该材料的制备使用了一系列高分辨率技术，包括原子探针层析、HAADF STEM和同步辐射X射线衍射。

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论文：Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation

描述：Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation

图片：微信图片_20170507111124.png

Research | 10 April 2017


Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation

Suihe Jiang,        Hui Wang,        Yuan Wu,        Xiongjun Liu,        Honghong Chen,        Mengji Yao,        Baptiste Gault,        Dirk Ponge,        Dierk Raabe,        Akihiko Hirata,        Mingwei Chen,        Yandong Wang        & Zhaoping Lu

Nature 544, 460–464
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Ultrastrong | Research | 10 October 2016

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