Abstract The purpose of vacuum melting is to minimize the pollution of interstitial element on TiAl intermetallics,but the evaporation loss of Al in TiAl alloy melt in a vacuum will have influence on the composition of TiAl intermetallic melt.

• 真空熔炼的目的是避免间隙元素对TiAl金属间化合物的污染。 但在真空下，由于钛铝合金熔体中铝的挥发损失将影响金属间化合物成分的准确度。