摘要
采用Gleeble-1500热模拟实验机研究了半固态AlSi7Mg合金的触变力学行为。通过回归分析建立了半固态AlSi7Mg合金在不同温度下的粘塑性本构关系模型;利用自行开发的半固态金属触变成形装置进行了实验研究,并采用建立的本构关系应用DEFORM^(TM)商用软件进行了模拟计算与实验条件相同的变形过程,由模拟计算与实验结果相比较可知,建立的本构关系模型是合理的,模拟结果与实验结果基本吻合。
The thixoforming mechanical behavior of the semi-solid AlSi7Mg alloy was studied on the Gleeble-1500 material thermo-simulation machine. The viscoplastic model of the stress at different temperatures was set up through the regression analysis. The experimental results made on the semi-solid metal thixoforming apparatus were compared with the simulation results calculated through DEFORM?software. It is shown that the model is reasonable, and the simulated results are in agreement with experimental ones.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期369-374,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金59975011
