| 摘要 |
A method of preparing a TiAl base composition containing niobium and chromium according to the formula Ti48Al48Cr2Nb2 is taught. The composition is melted and cast. It is then homogenized at temperatures up to 1400 DEG C. The cast and homogenized composition is enclosed in a restraining band, heated to forging temperature and forged. Following the forging, it is annealed and aged.
|
