Hf-rich melts have good fluidity, wettability and skin effects at the later stage of solidification. The skin melts are a multicomponent eutectic liquid that contains Hf above 6% by wt. and have the capability of self-brazing and the recovery effect on cracks. 凝固后期富铪熔体具有良好的流动性和润湿性并具有趋肤效应,趋肤液是含铪量高于6%的多元共晶液,它具有自钎接性能,对裂纹起自愈合作用。