在许多金属材料中有些材料很耐磨,有些材料能抗腐蚀,但也有少数材料兼有耐磨和抗蚀二种性能。通常于高温下在特殊的封闭环境中,一些耐磨的材料很快被腐蚀;同样,许多抗腐蚀的材料在受力情况下则容易被擦伤或磨损。偶然也能发现一些材料兼有两种性能,但那种材料往往很坚硬而不易加工。 Some materials are resistant to wear in many metallic materials and some materials are resistant to corrosion, but there are also a few materials that combine both abrasion and corrosion resistance. Some abrasion-resistant materials are quickly corroded, usually at high temperatures in a special enclosed environment; similarly, many corrosion-resistant materials are easily bruised or worn under stress. Occasionally, some materials can also be found in both performance, but the kind of material is often very hard and not easy to process.