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一、绪言金属间化合物中,Ti和Al的原子比为1∶1(即含36%Al)的TiAl合金在作为先进的耐热材料上引起了很大的注目。作者首先用精密铸造法试制成了TiAl合金制的透平叶轮,并将此叶轮装在透平上做了短时间的试验,证实了可以得到优越的性能。
I. INTRODUCTION TiAl alloys with an atomic ratio of Ti and Al of 1: 1 (ie, 36% Al) among intermetallic compounds have attracted a great deal of attention as advanced heat-resistant materials. The author first made a trial of precision casting method TiAl alloy turbine impeller, and the impeller mounted on the turbine to do a short test, confirmed that you can get superior performance.