[1]郑晓剑,余辉辉,信运昌.利用孪晶界面强韧化镁合金[J].中国材料进展,2016,(11):006-10.[doi:10.7502/j.issn.1674-3962.2016.11.02]
 ZHENG Xiaojian,YU Huihui,XIN Yunchang.Hardening and Toughening Mg Alloys using Twin Boundaries[J].MATERIALS CHINA,2016,(11):006-10.[doi:10.7502/j.issn.1674-3962.2016.11.02]
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利用孪晶界面强韧化镁合金
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2016年第11期
页码:
006-10
栏目:
出版日期:
2016-11-30

文章信息/Info

Title:
Hardening and Toughening Mg Alloys using Twin Boundaries
作者:
郑晓剑余辉辉信运昌
重庆大学材料科学与工程学院,重庆400030
Author(s):
 ZHENG Xiaojian YU Huihui XIN Yunchang
School of Materials Science and Engineering,Chongqing University, Chongqing 400030
关键词:
镁合金孪晶强化各向异性织构
DOI:
10.7502/j.issn.1674-3962.2016.11.02
文献标志码:
A
摘要:
轻质镁合金在航空航天、交通运输等领域的轻量化方面具有广阔的应用前景。孪生变形是六方结构镁合金室温下重要的变形机制,最近大量研究报道了利用预变形孪晶界面调控镁合金组织、织构和力学性能。本文系统综述了利用拉伸孪晶组织强化镁合金的研究进展。首先介绍了镁合金的主要的变形机制及拉伸孪生的特点,然后系统总结了利用拉伸孪晶强化镁合金的研究进展,重点阐述了孪晶强化特点及主要准则,包括利用单一孪晶结构强化镁合金的特点及不足、利用复合孪晶结构实现三维强化的思路、复合孪晶实现三维强化的机制及复合孪晶结构的设计准则。在本文最后,展望了利用孪晶组织强化镁合金的发展方向。
Abstract:
Mg alloys with a low density are desirable candidates as structures in aerospace/airspace industry and transportation vehicles. Twinning constitutes one of the main deformation modes of Mg alloys with a hcp structure. Many recent studies reported the application of extension twins to tailor the microstructure, texture and mechanical performance of Mg alloys. In the present paper, the progress on hardening and toughening of Mg alloys by twin boundaries (TBs) were reviewed. First, a short introduction about deformation mechanisms and twinning in Mg alloys was addressed. The character of TB-hardening and the progress were systematically concluded, with a great emphasis on the application of single twin structure and its disadvantage, hardening using a composite twin structure, the mechanism to harden in three dimensions and the principles to design effective composite twin structure. At last, the future trend about the application of TBs to harden Mg alloys was proposed.
更新日期/Last Update: 2016-10-26