A 30 vol.% ZrCp/W composite has been deformed in compression in the temperature range of 1200-1600°C. Dislocation nucleation mechanism in ZrC particles is discussed by analyzing the harmonious deformation between tungsten-matrix and ZrC particles. Thermal activation apparently increases the mobility of screw segments, resulting in the formation of many kinetics jogs and thermodynamics jogs above 1300°C. The formation mechanisms of the dislocation configurations are studied.
参考文献
| [1] | |
| [2] | M.F. Ashby: Phil. Mag. A, 1970, 21, 399.[2 ] N. Hansen: Acta Metal., 1977, 25, 863.[3 ] C.Y. Barlow and N. Hansen: Acta Metall. Mater., 1991, 39, 1971.[4 ] E. Macherauch and K.H. Kloos: Origin, Measurement and Evaluation of Residual Stresses, in Residual Stresses in Science and Technology, eds E. Macherauch and V. Hauk, Deutsche Gesellschaft fÄ |
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%