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本文从提高汽车效率，降低油耗（节能）和减少排放（环境保护）的观，支出发，论述了减轻汽车重量的必然性。通过分析日、美等国近１０年来汽车铝材化的速度及效果，指出汽车铝材化的现实性。预测在未来１０年中世界汽车铝材化率将平均边到１５～２０％，将使发动机输出功率提高２０％左右和降低油耗１５～２０％。汽车铝材化可能的零部件是车身板件、热交换器、车轮、横梁、进气和排气门、转向节、传动轴、半轴、差速器箱、活塞、连杆、摇臂等。除常规铝合金外，铝基复合材料会较多地应用于发动机零件和轴类零件中。急冷凝固的铝基微晶也将会在汽车活塞、连杆、汽缸套、气门挺杆和汽车空调设备的压缩机叶片、转子等滑动部件上得到应用。
This paper discusses the necessity of reducing vehicle weight from the viewpoints of improving automobile efficiency, reducing fuel consumption (saving energy) and reducing emissions (environmental protection). By analyzing the speed and effect of automobile aluminumization in Japan, the United States and other countries in the past 10 years, the reality of automotive aluminum is pointed out. It is forecasted that in the next 10 years, the world automobile aluminum ratio will average to 15-20%, which will increase engine output power by 20% and reduce fuel consumption by 15-20%. Possible components for automotive aluminum include body panels, heat exchangers, wheels, crossbars, intake and exhaust valves, steering knuckles, drive shafts, axle shafts, differential cases, pistons, connecting rods, rocker arms, etc. . In addition to conventional aluminum, aluminum-based composite materials will be more used in engine parts and shaft parts. Rapidly solidified aluminum-based crystallites will also be used on sliding components such as compressor blades and rotors for automotive pistons, connecting rods, cylinder liners, valve lifters and automotive air-conditioning equipment.