为研究热处理过程中SiCP/2024Al复合材料的热应力的变化规律,及热处理工艺对SiCP/2024Al复合材料热残余应力的影响,利用Marc有限元软件对淬火和冷热循环热处理过程中的SiCP/2024Al复合材料的热应力进行了数值模拟.研究结果表明:热处理过程中,颗粒和基体的界面附近会产生很大的热应力场,并且在SiC颗粒的尖角处产生热应力集中;经淬火处理后的SiCP/2024Al复合材料的热残余应力与基体的屈服强度接近,但经过冷热循环处理后的SiCP/2024Al复合材料中的热残余应力明显降低.
参考文献
[1] | ARSENAULTRJ;TAYA M .Thermal residual stress in metal matrix composite[J].Acta Metallurgica et Materialia,1987,35(03):651-659. |
[2] | 王莹,刘向东.碳化硅颗粒增强铝基复合材料的现状及发展趋势[J].铸造设备研究,2003(03):18-22. |
[3] | G. Meijer;F. Ellyin;Z. Xia .Aspects of residual thermal stress/strain in particle reinforced metal matrix composites[J].Composites, Part B. Engineering,2000(1):29-37. |
[4] | ARSENAULTRJ;WU S B .The strength differential and bauschinger effects in SiC-Al composites[J].Materials Science and Engineering,1987,96:77-89. |
[5] | F. Teixeira-Dias;L. F. Menezes .Numerical determination of the influence of the cooling rate and reinforcement volume fraction on the levels of residual stresses in Al-SiC composites[J].Computational Materials Science,2001(1):26-36. |
[6] | FEIWD;HU M;YAO C K .Thermal expansion and thermal mismatch stress relaxation behaviors of SiC reinforced aluminum composite[J].Materials Chemistry and Physics,2002,77:882-888. |
[7] | LINJS;LIP X;WU R J .Aging evaluation of cast particulate-reinforced SiC/Al 2024 composites[J].Scripta Metallurgica et Materialia,2002,28:281-286. |
[8] | 武高辉 .一种亚微米复合材料[P].CN 96122955.1,1997-08-24. |
[9] | 武恭;姚良均;李震夏.铝及铝合金材料手册[M].北京:科学出版社,1994 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%