铸造2018，Vol.67Issue(3)：240-244,5.
深冷处理对电磁搅拌AZ91镁合金组织与性能的影响
Effect of Deep Cryogenic Treatment on Microstructure and Properties of Electromagnetic Stirred AZ91 Magnesium Alloy
摘要
Abstract
The effects of deep cryogenic treatment on the microstructure and mechanical properties of electromagnetic stirred AZ91 magnesium alloy after solution treatment was researched in this paper. The electromagnetic stirred AZ91 magnesium alloy samples after solution treatment were placed in the liquid nitrogen at-196℃ with different times.The mechanical performance and microstructure of deep cryogenic samples were analyzed.The results show that,after the cryogenic treatment,the tensile strength and elongation are improved.Compared with the solution samples,the grain is refined and the precipitation of the second phase particles occurs in the cryogenic process.The tensile strength,elongation and hardness of the alloy reache 249 MPa,11.6% and HB 68.1 respectively after cryogenic treatment for 24 h.关键词
深冷处理/电磁搅拌/第二相/力学性能Key words
deep cryogenic treatment/electromagnetic stirring/second phase/mechanical properties分类
矿业与冶金引用本文复制引用
卞健从,石文静,姜磊,聂赛男,于宝义,郑黎,李润霞..深冷处理对电磁搅拌AZ91镁合金组织与性能的影响[J].铸造,2018,67(3):240-244,5.基金项目
辽宁省自然科学基金计划项目(20170540683). （20170540683）
