Bimodal microstructure - A feasible strategy for high-strength and ductile metallic materials
Bimodal microstructure - A feasible strategy for high-strength and ductile metallic materials
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双峰微观结构——高强度和延展性金属材料的可行策略
DOI：
10.1016/j.jmst.2017.11.018
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发表时间：
2017-11
影响因子：
10.9
通讯作者：
Qi-Chuan Jiang
中科院分区：
文献类型：
--
作者：
Min Zha;Hong-Min Zhang;Zhi-Yuan Yu;Xuan-He Zhang;Xiang-Tao Meng;Hui-Yuan Wang;Qi-Chuan Jiang
引入双峰晶粒尺寸分布已被证明是制造高强度和延展性金属材料的有效策略，其中细晶粒提供强度，而粗晶粒实现应变硬化，从而具有良好的延展性。在过去的几十年里，这一领域的研究活动急剧增长，包括通过各种热机械加工方法在 fccCu、Ni 和 Al-Mg 合金以及钢和 Fe 合金上取得了有趣的结果。然而，对双峰镁和其他六方金属的研究相对较少。简要概述了基于热机械加工技术生产各种金属材料双峰微观结构的可用方法，并总结了双峰可实现的不寻常的机械性能，其中重点放在微观结构-机械性能和相关机制上。此外，还确定并简要讨论了影响双峰策略的关键因素，例如起始材料的成分和加工参数，以及该研究领域面临的挑战。
Introducing a bimodal grain-size distribution has been demonstrated an efficient strategy for fabricating high-strength and ductile metallic materials, where fine grains provide strength, while coarse grains enable strain hardening and hence decent ductility. Over the last decades, research activities in this area have grown enormously, including interesting results onfccCu, Ni and Al-Mg alloys as well as steel and Fe alloys via various thermo-mechanical processing approaches. However, investigations on bimodal Mg and otherhcpmetals are relatively few. A brief overview of the available approaches based on thermo-mechanical processing technology in producing bimodal microstructure for various metallic materials is given, along with a summary of unusual mechanical properties achievable by bimodality, where focus is placed on the microstructure-mechanical properties and relevant mechanisms. In addition, key factors that influencing bimodal strategies, such as compositions of starting materials and processing parameters, together with the challenges this research area facing, are identified and discussed briefly.
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影响因子：
6
作者：
Mingchun Zhao;F. Yin;T. Hanamura;K. Nagai;A. Atrens
通讯作者：
Mingchun Zhao;F. Yin;T. Hanamura;K. Nagai;A. Atrens
影响因子：
3
作者：
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影响因子：
9.4
作者：
Edalati, Kaveh;Akama, Daichi;Horita, Zenji
通讯作者：
Horita, Zenji
影响因子：
9.4
作者：
Wang, YM;Ma, E
通讯作者：
Ma, E
影响因子：
9.4
作者：
Dalla Torre, F;Sp채tig, P;Victoria, M
通讯作者：
Victoria, M