以高纯钨粉、钛粉和TA2钛片为原料, 分别采用液相烧结法和熔渗法制备了Ti含量为10\%的W--Ti合金; 测量了W--10%Ti合金的密度和杂质(C、N和O)含量, 研究了不同方法制备的W--Ti合金的相组成和微观形貌. 结果表明, 熔渗法制备的W--Ti合金致密度达94%以上, 相结构由含有较多富Ti相的固溶体β(W/Ti)组成；液相烧结的合金致密度为90%左右, 组织相对均匀；两种方法制备的合金杂质(C、N和O)含量均较低. 探讨了液相烧结制备W--10%Ti合金时固溶体扩散形成的机理.
By using high--purity tungsten powders, titanium powders and TA2 Ti sheet as the raw materials, W--10%Ti alloys were prepared by infiltration and liquid--phase sintering respectively. The density and impurity content of C, N and O in W--10\%Ti alloy were measured. The morphology, composition and microstructure were characterized. The results show that W--10\%Ti alloy prepared by infiltration has a relative density of above 94% and is mainly consisted of Ti--rich $\beta$ solid solution, while the relative density of W--Ti prepared by liquid phase sintering is about 90% and the microstructure is uniform. The W--Ti alloys prepared by both methods have low impurity contents. The formation mechanism of W--10\%Ti alloy by liquid phase sintering was discussed as well.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%