摘要
利用热力学软件对轻质高弹性模量Al-Mg-Ni-Co铝合金进行成分优化及力学性能的模拟。利用正交设计方法,设计Mg、Ni和Co三个变量,各自六个变化水平,共36种合金成分。结果表明:Co元素含量对合金的弹性模量影响最大,Ni元素影响次之,Mg影响最小;Ni对合金密度影响最大,Co影响次之,Mg影响最弱;固溶强化和析出强化共同导致具有溶质元素的合金抗拉强度和屈服强度的上升;Mg元素含量的增加,有利于比弹性模量的升高。
The composition optimization and mechanical properties of Al-Mg-Ni-Co alloy with high elastic modulus and low density were simulated by thermodynamic software.Three variables,Mg,Ni and Co,were designed by orthogonal design method,and each of them has six levels of variation.A total of 36 alloy compositions were obtained.The results show that the content of Co has the greatest influence on the elastic modulus of the alloy,followed by Ni and Mg is weakest,the content of Co has the greatest influence on the density of the alloy,followed by Co and Mg is weakest.The tensile strength and yield strength of the alloys with high solute elements increase by solution strengthening and precipitation strengthening,and the specific elastic modulus increases with the increase of Mg element content.
作者
张志红
王孝国
曹志刚
张晶晶
武振华
ZHANG Zhihong;WANG Xiaoguo;CAO Zhigang;ZHANG Jingjing;WU Zhenhua(School of Intelligence Engineering,College of Information,Shanxi Agricultural University,Taigu 030800,China;School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《热加工工艺》
北大核心
2020年第12期33-35,共3页
Hot Working Technology
基金
机制专业应用型人才培养模式下的模块化实验体系建设项目(2016433002)
面向新工科的《金属材料与热加工工艺》课程实践教学改革项目(J2018243)。
