Achieving heterogeneous structure in hcp Zr via electroplastic rolling

Achieving heterogeneous structure in hcp Zr via electroplastic rolling
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通过电塑轧制获得六面体锆异质结构

DOI:
10.1016/j.msea.2018.02.106
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发表时间:
2018-04
期刊:
Materials Science & Engineering A
影响因子:
--
通讯作者:
Xiangyi Zhang
Xiangyi Zhang
中科院分区:
其他
文献类型:
--
作者:
Ming Li;Defeng Guo;Jingtao Li;Shimin Zhu;Chao Xu;Kaifang Li;Yadan Zha;Xiangyi Zhang

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异质结构已被广泛应用于改善高强度纳米结构材料的塑性。然而,在硬变形材料中形成异质结构仍然是一个挑战。通过电塑性轧制和随后的低温退火热处理,在硬变形的HcpZr中形成了异质组织,表现出高强度和良好塑性的良好结合。它的形成与电塑性变形过程中有效的组织细化和较高的变形储能能力有关。本研究对异质结构金属及合金的设计和制备具有重要意义。
Heterogeneous structure has been widely used to enhance the poor ductility of high-strength nanostructured materials. However, it is still a challenge to form heterogeneous structures in hard-deformed materials. Here, by using electroplastic rolling and subsequent low-temperature annealing, a heterogeneous structure was formed in the hard-deformedhcpZr and exhibited a good combination of high strength and good ductility. Its formation can be attributed to the effective microstructure refinement and high deformation energy storage during the electroplastic deformation process. The present study is important for the design and fabrication of heterogeneous structured metals and alloys.
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