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不锈钢品种繁多,按国标(GB1220-75)分为马氏体型、奥氏体型、铁素体型、双相和沉淀硬化型五大类.其中马氏体类型不锈钢无论在军品或民品中都是使用较为广泛的一种.影响不锈钢制零件耐蚀性的因素是很多的,如材料成分、热处理状态、使用介质、接触电位等.因此,在使用和热处理不锈钢时,仅知道钢的化学成分和机械性能是不够的,还必须了解各种热处理工艺状态对耐蚀性的影响,才能更好地发挥不锈钢的特性.马氏体不锈钢在各种热处理工艺状态下其耐蚀性是有明显差别的,但这方面报导较少,生产中重视不够.本文根据生产实践和有关文
Stainless steel variety, according to the national standard (GB1220-75) is divided into martensite, austenitic, ferritic, biphasic and precipitation hardening of the five categories. Which martensite type stainless steel both in military or civilian products are used A wider range of factors affect the corrosion resistance of stainless steel parts are many, such as material composition, heat treatment, the use of media, contact potential, etc. Therefore, the use and heat treatment of stainless steel, only know the chemical composition of steel and machinery Performance is not enough, but also must understand the impact of various heat treatment process on the corrosion resistance in order to better play the characteristics of stainless steel.Mattery stainless steel corrosion resistance in a variety of heat treatment process conditions are significantly different, However, there are few reports in this area and not enough attention in production.This article based on the production practice and related articles