一、前言尽管青铜因有良好的耐磨性能被广泛用作轴承材料,但却具有一些缺点,诸如:铜含量高,因而成本大增,重量也大;在边界润滑条件下运转时,易产生卡住现象。近来,为了克服这些缺点,材料学家拟用新合金来代替青铜,制造轴承。其中正在研究锌-铝(ZA)合金,以它们代替青铜制造 I. Preface Although bronze is widely used as a bearing material because of its good wear resistance, it has some disadvantages such as high copper content, high cost and heavy weight. It is easy to produce when operating under boundary lubrication conditions Stuck phenomenon. Recently, in order to overcome these shortcomings, material scientists intend to use new alloys instead of bronze to make bearings. Among them, zinc-aluminum (ZA) alloys are being researched and made of them instead of bronze