提高1Cr18Ni9Ti航空管抗晶间腐蚀性能的研究  

Study on the Enhancement of Intergranular Corrosion Properties of 1Cr18Ni9Ti Pipe Used in Aerospace Field

作　　者：杨军和[1] 孙建春[2] 陈登明[2] 

机构地区：[1]重庆钢铁研究所,重庆400084 [2]重庆科技学院冶金与材料工程学院,重庆401331

出　　处：《材料工程》2009年第S2期64-66,共3页Journal of Materials Engineering

基　　金：重庆市科委基金项目资助(CSTC;2008AC4042)

摘　　要：为了保证不锈钢的耐蚀性,必须严格控制其含碳量。通过对小直径1Cr18Ni9Ti航空管抗晶间腐蚀性能与Ti,C含量的关系进行了分析,并进行了提高其抗晶间腐蚀性的针对试验研究。研究结果表明,将C含量控制在0.025～0.045%之间,Ti含量控制在0.2%～0.4%之间,即Ti,C含量比值约为8～11时,1Cr18Ni9Ti钢管抗晶间腐蚀性较好;采用低温燃烧除酯,可以有效避免在制管过程中增加1Cr18Ni9Ti钢管的含碳量,从而提高其耐蚀性;配以适当的稳定化处理,也可以在一定程度上提高1Cr18Ni9Ti钢管的抗晶间腐蚀性能。The carbon contamination of stainless steel must be very slow to guarantee its corrosion performance.The relationship between the C and Ti composition of 1Cr18Ni9Ti and its intergranular corrosion properties was discussed in detail.The results showed 1Cr18Ni9Ti pipe containing 0.025%-0.045% C and 0.2%-0.4% Ti had good intergranular corrosion properties.And if grease in the pipe was cleared before heat treatment and the pipe was stabilization treated,its intergranular corrosion properties can also be enhanced.

关 键 词：1CR18NI9TI 晶间腐蚀 稳定化处理 

分 类 号：V250.2[一般工业技术—材料科学与工程]