借助观察和分析变形前后晶须取向和试样形状的变化,研究了晶须呈定向排列的SiCW/6061Al复合材料压缩变形期间金属流动和晶须重新取向的现象.研究结果表明,由于晶须的定向排列,SiCW/6061Al复合材料压缩变形期间基体金属的流动和晶须的重新取向强烈地依赖于变形温度.在较高温度压缩变形时,基体金属可以更均匀地流动,此时晶须是否发生重新取向与变形时环状和柱状试样的应变场有关;在较低温度变形时晶须不发生重新取向.
参考文献
| [1] | K Suganuma;T Okamoto;N Suzuki .Semisolid extrusion of aluminium alloys reinforced with alumina short-fiber cladding[J].Journal of Materials Science Letters,1987,6:1347-1348. |
| [2] | K Suganuma;T Fujita;T Niihara .Hot extrusion of AA7178 reinforced with alumina short fiber[J].Materials Science and Technology,1989,5:249-254. |
| [3] | Zhang Wenlong;Cai Liuchun;Peng Huaxin .Forming process of hot-extruded SiC_2/6061Al composites(I)[J].Transactions of Nonferrous Metals Society of China,1998(3):432-436. |
| [4] | Z Xong;L Geng;C K Yao .Investigation of high-temperature deformation behavior of a SiC whisker reinforced 6061 aluminum composite[J].Journal of Computer Science and Technology,1990,39:117-125. |
| [5] | L Geng;S Ochiai;J Q Hu .Compression testing of a SiCW/Al composite at temperature close to and above the solidus of matrix alloy[J].Materials Science and Engineering,1998,246:302-305. |
| [6] | M Guden;I W Hall .High strain-rate compression testing of a short-fiber reinforced aluminum composite[J].Materials Science and Engineering,1997,232:1-10. |
| [7] | C A Stanford-Beale;T W Clyne .Extrusion and high-temperature deformation of fiber-reinforced aluminium[J].Journal of Computer Science and Technology,1989,35:121-157. |
| [8] | A Haddout;G Villoutreix .An experimental study of fiber orientation in injection-moulded short glass fiber-reinforced polypropylene/polyarylamide composites[J].Composites,1994,25(02):147-153. |
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%