Magnesium casting technology for structural applications
Magnesium casting technology for structural applications
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DOI：
10.1016/j.jma.2013.02.002
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发表时间：
2013-03-01
影响因子：
17.6
通讯作者：
Luo, Alan A.
中科院分区：
文献类型：
--
作者：
Luo, Alan A.
综述了镁合金的熔炼和铸造工艺。它还回顾了自1921年陶氏化学开始生产镁活塞以来，镁铸件的历史发展及其在西方世界的结构用途。镁铸造技术在二战期间和二战后都得到了很好的发展，无论是在重力砂型铸造和金属型铸造方面，还是在航空航天、国防和汽车应用的高压铸造方面。在过去的20年里，利用现代镁合金优良的铸造性能，薄壁压铸在汽车工业中的应用成为发展的重点。近年来，镁合金在汽车、国防、航空航天、电子和电动工具等领域的应用不断扩大，导致铸造工艺的多样化，包括真空压铸、低压铸造、挤压铸造、消失模铸造、烧蚀铸造和半固态铸造。本文还将回顾镁的历史、当前和潜在的结构用途，重点放在汽车应用上。文中还讨论了镁结构应用的技术挑战。在接下来的几十年里，全球能源需求的增加、环境保护和政府法规将刺激更多的轻质镁铸件的应用。集成计算材料工程(ICME)工具的发展将加速镁铸件在结构应用中的应用。版权所有2013，重庆大学中国镁合金国家工程研究中心。由Elsevier B.V.制作和托管。根据CC BY-NC-ND许可证开放访问。
This paper summarizes the melting and casting processes for magnesium alloys. It also reviews the historical development of magnesium castings and their structural uses in the western world since 1921 when Dow began producing magnesium pistons. Magnesium casting technology was well developed during and after World War II, both in gravity sand and permanent mold casting as well as high-pressure die casting, for aerospace, defense and automotive applications. In the last 20 years, most of the development has been focused on thin-wall die casting applications in the automotive industry, taking advantages of the excellent castability of modern magnesium alloys. Recently, the continued expansion of magnesium casting applications into automotive, defense, aerospace, electronics and power tools has led to the diversification of casting processes into vacuum die casting, low-pressure die casting, squeeze casting, lost foam casting, ablation casting as well as semi-solid casting. This paper will also review the historical, current and potential structural use of magnesium with a focus on automotive applications. The technical challenges of magnesium structural applications are also discussed. Increasing worldwide energy demand, environment protection and government regulations will stimulate more applications of lightweight magnesium castings in the next few decades. The development of use of Integrated Computational Materials Engineering (ICME) tools will accelerate the applications of magnesium castings in structural applications. Copyright 2013, National Engineering Research Center for Magnesium Alloys of China, Chongqing University. Production and hosting by Elsevier B.V. Open access under CC BY-NC-ND license.