Bi is added into high silica Al-alloy to form multicomponent Al-Si Bi whose crystallization has the character of monotectic transition.
高硅铝合金中加入Bi形成Al-Si-Bi多元合金,具有偏晶转变的结晶特点。
Adding element Bi to eutectic crystal and hyper-eutectic Al-Si alloy and forming multiple unit Al-Si-Bi alloy, whose crystallization typify the monotectic transition.
共晶、过共晶Al-Si合金中加入元素Bi形成Al-Si-Bi多元合金,具有偏晶转变的结晶特点,由于Bi的不溶性及自润滑性,并以高弥散游离态兮布干基体中使过共晶Al-Si合金的耐磨性大幅度提高。