论文部分内容阅读
由于拉压不对称性对镁合金成形有重要的影响,如何减弱不对称性是当前研究的一个主要课题目。综述了拉压不对称产生的机理,阐述了晶粒尺寸、加载方式、热处理、合金元素以及工艺参数如温度和应变速率对镁合金拉压不对称性的影响,以寻求一个简单有效弱化拉压不对称性的方法和手段。提出了镁合金拉压不对称性存在的问题以及发展趋势。
As asymmetric tension and compression of magnesium alloy forming has a significant impact, how to reduce the asymmetry is a major topic of current research. The mechanism of asymmetric tension and compression is summarized. The effects of grain size, loading method, heat treatment, alloying elements and process parameters such as temperature and strain rate on the tension and compression asymmetry of magnesium alloy are discussed in order to find a simple and effective weakening tension and compression Asymmetric methods and means. The existing problems and development trend of tension-compression asymmetry of magnesium alloy are proposed.