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| 半固态AlSi7Mg合金的触变力学模型研究 | |
| 引用本文： | 潘洪平,丁志勇,董原生,谢水生.半固态AlSi7Mg合金的触变力学模型研究[J].金属学报,2003,39(4):369-374. |
| 作者姓名： | 潘洪平 丁志勇 董原生 谢水生 |
| 作者单位： | 1. 装甲兵工程学院技术保障工程系,100072 2. 江西赣州南方冶金学院材料化工学院,341000 3. 北京有色金属研究总院,北京,100088 |
| 基金项目： | 国家自然科学基金59975011 |
| 摘 要： | 采用G1eeble—1500热模拟实验机研究了半固态A1Si7Mg合金的触变力学行为.通过回归分析建立了半固态A1Si7Mg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． |
| 关 键 词： | 半固态铝硅合金 触变力学模型 粘塑性 本构关系 触变成形 |
| 文章编号： | 0412-1961(2003)04-0369-06 |
| 修稿时间： | 2002年6月19日 |
STUDY OF THE CONSTITUTIVE MODEL FOR THIXO-FORMING OF SEMI-SOLID AlSi7Mg ALLOY |
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| PAN Hongping,DING Zhiyon DONG Yuansheng,XIE Shuishen.STUDY OF THE CONSTITUTIVE MODEL FOR THIXO-FORMING OF SEMI-SOLID AlSi7Mg ALLOY[J].Acta Metallurgica Sinica,2003,39(4):369-374. | |
| Authors: | PAN Hongping DING Zhiyon DONG Yuansheng XIE Shuishen |
| Affiliation: | PAN Hongping,DING Zhiyon DONG Yuansheng,XIE Shuishen 1) Department of Technical Support Engineering,Institute of Armored Force Engineering,100072 2) Institute of Material and Chemical Engineering,Ganzhou Institute of South Metallurgy,341000 3) Beijing General Research Institute for Non-ferrous Metals,Beijing 100088 Correspondent: PAN Hongping,senior engineer,Tel: |
| Abstract: | 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. |
| Keywords: | semi-solid Al-Si alloy constitutive model for thixoforming viscoplasticity |
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