TiB reinforced titanium composites have been successfully synthesized by adding the Al/TiB2 master alloy into titanium alloy. The phase constituent and the microstructure have been studied by XRD and SEM. Compared with the standard values, the lattice parameter of TiB calculated from the XRD pattern indicates that the synthesized TiB is of prefect crystal structure. The microstructure has shown that high aspect ratio fibrous TiB has been found, which homogeneously distribute in the matrix in a random way. The size is about 100 μm in length, less than 2.5 μm in diameter and the aspect ratio is greater than 40. Deep etched microstructures show that some coarse hollow TiB corresponding to primary TiB are also formed with smooth and flat surface and random transverse section. The size is about 100 μm in length and greater than 10 mum in diameter. The solidification process has also been analyzed.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%