通过SEM、TEM及硬度和拉伸性能测试对SiCW/6061Al复合材料正挤压管材和反挤压杯的组织和性能进行了观察和测定.研究结果表明,挤压使SiCW发生了定向排列和折断,挤压温度是影响挤压件组织和性能的重要因素,挤压件硬度分布不均匀是由于金属流动不均匀所致,挤压后固溶时效处理能够大幅度地提高复合材料的抗拉强度.
参考文献
[1] | Mohn W R, Vukotratovich D. Recent applications of metal matrix composites in precision instruments and optical systems. J Materials Engineering, 1988,10(3):225 |
[2] | Mohn W R, Vukotratovich D. Engineered metal matrix composites for precision optical systems. SAMPE J, 1988(1~2):26 |
[3] | 耿林. 压铸SiCW/LD2复合材料中晶须及界面的微观结构: [博士学位论文]. 哈尔滨工业大学,1990 |
[4] | 刘宗荣. SiCW/Al复合材料界面区结构和形变断裂过程: [博士学位论文]. 哈尔滨工业大学,1994 |
[5] | Liu Y L. A study on flow stress of Al-SiC composites deformed in large range of strain. Script Materialia, 1996, 35(2): 253~259 |
[6] | Stanford-Beale C A, Clyne T W. Extrusion and high-temperature deformation of fibre-reinforced aluminium. Composites Science and Technology, 1989, 35: 121~157 |
[7] | Suganuma K, Fujita T, Niihara K. Hot extrusion of AA7178 with AL2O3 fibre. Materials Science and Technology, 1989, 5(3):249~254 |
[8] | 汪大年. 金属塑性成形原理. 北京: 机械工业出版社, 1982.161~162 |
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%