The lightweighting can be realized by adopting light metal or higher strength material. The stengthen and toughening of Al alloy colligate the way of lightweighting.

轻量化可以通过采用轻金属来实现,也可以采用更高强度材料来实现,铝合金强韧化综合了轻量化发展的两个方向。

The traditional anti-abrasion materials, such as white cast irons, high manganese steels, high chromium cast irons, ceramic particle/light metal composites, are no longer met the requirements of servicing conditions which becoming tougher and tougher.

传统的抗磨料磨损材料(像白口铸铁、高锰钢、高铬铸铁、陶瓷颗粒/轻金属基复合材料等)已不能满足人们因为越来越苛刻的服役条件所提出的要求。