汽车发动机的全铝制造与表面改质

Al-alloy Fabrication and Surface Modification of Automotive Engines

用铝合金来制造整个汽车发动机是使汽车减重和提高效率的重要途径，也是未来汽车发展的方向之一。目前，发动机的全铝制造仅在赛车和个别高级轿车上采用，表面改质已取得显著使用效果。

It is an important way in reducing weight of automobiles that engines are made of Al-alloy. The adventages of this engines are introduced, and some surface modifications have been successfully carried out.