文章信息/Info

Title:

Research Status and Prospect of High-Modulus Magnesium MatrixMaterials

作者:

涂騰1；陳先華12

(1.重慶大學材料科學與工程學院,重慶400044)
(2.重慶大學 國家鎂合金材料工程技術研究中心,重慶400045)

Author(s):

TU Teng1；CHEN Xianhua12

(1. College of Materials Science and Engineering, Chongqing University, Chongqing 400045，China)
(2.National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400045，China)

關鍵詞:

合金;  彈性模量;  合金化;  復合材料;  增強相

Keywords:

magnesium alloy;  elasticity modulus;  alloying;  composite material;  reinforcement

DOI:

10.7502/j.issn.1674-3962.2018.07.04

文獻標志碼:

A

摘要:

提高模量對擴大鎂基材料的應用范圍意義重大，高模量鎂基材料的研究開發(fā)正受到國內(nèi)外學者們的廣泛關注和高度重視。本文綜述了國內(nèi)外高模量鎂基材料的最新研究進展，闡述了工藝條件、合金化以及復合化對提高鎂合金彈性模量的作用及效果,分析了彈性模量提升的內(nèi)在機制，并介紹了高模量鎂基材料的力學性能。通過合金化在鎂合金中加入一定量的合金元素，和通過復合化在鎂基體中添加陶瓷顆粒、晶須或纖維等各種增強體，能顯著提高鎂基材料的彈性模量。最后討論了高模量鎂基材料研究目前存在的主要問題，并對今后高模量鎂基材料的發(fā)展趨勢進行了展望。

Abstract:

It is of great importance to increase the modulus of magnesium matrix materials for enlarging its application. At present, the research and development of high-modulus magnesium matrix materials have received much attention all over the world, and consequently many researches have been carried out. In the paper, the latest research progress of high-modulus magnesium matrix materials are reviewed. The effect of process conditions, alloying and composited process on improving the elastic modulus of magnesium alloys are illustrated. The internal mechanism of elastic modulus improvement and mechanical property of magnesium matrix materials are analyzed and introduced respectively. A certain amount of alloying elements are added to the magnesium alloys by alloying process, and various reinforcements such as ceramic particles, whisker or fiber reinforcements are added to the magnesium matrix by composited process, in order to significantly increase the elastic modulus of magnesium matrix materials. Finally, the main problems existing in the study and the future research direction of high-modulus magnesium matrix materials are discussed and proposed respectively.