强塑均衡金属材料精准设计及制备

doi:10.3901/JME.2021.16.329

摘要/Abstract

摘要： 由于长期存在的强度-塑性矛盾，开发强塑均衡的金属结构材料一直是结构材料领域追求的目标和研究热点。微观组织精准调控为强塑均衡金属材料的设计提供了有效的方法。系统梳理近年来国内外基于晶粒微观组织精准调控的强塑均衡金属材料设计策略的研究进展（涵盖均质纳米晶/超细晶结构、异质结构和梯度纳米结构）；详细介绍晶粒调控与其他强塑化方法结合的强塑均衡协同设计策略及上述微观结构的制备方法；最后对该领域面临的一些挑战和亟待解决的问题进行讨论和展望。

关键词: 强度, 塑性, 超细晶, 纳米晶, 异质结构, 梯度纳米结构

Abstract: Developing a metal with strength-plasticity synergy is always a goal and research focus in the field of structural metals due to the longstanding strength-plasticity trade-off. Microstructure regulation provides an effective method of designing metals with strength-plasticity synergy. Research progress on the strength-plasticity synergy designing based on grain microstructure regulation in recent years is reviewed. The mentioned microstructures involve homogenous nano/ultrafine grained structure, heterogeneous structure, and gradient nanostructure. Moreover, the strategy of the strength-plasticity synergy designing based on grain microstructure regulation combined with other methods is also introduced. The preparation methods of the different microstructures are reviewed. Finally, perspectives and challenges on the strength-plasticity synergy designing are addressed.

Key words: strength, plasticity, ultrafine grain, nanograin, heterogeneous structure, gradient nanostructure

中图分类号:

TG111

孙甲鹏, 贾云飞, 张勇, 韩静, 吴国松. 强塑均衡金属材料精准设计及制备[J]. 机械工程学报, 2021, 57(16): 329-348,360.

SUN Jiapeng, JIA Yunfei, ZHANG Yong, HAN Jing, WU Guosong. Precise Design and Preparation of Metals with Strength-plasticity Synergy[J]. Journal of Mechanical Engineering, 2021, 57(16): 329-348,360.

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