摘要
众所周知,为了保证不锈钢的耐蚀性,必须严格控制其含碳量。本文通过对小直径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。
As we all know, the carbon contamination of stainless steel must be very slow to guarantee its corrosion performance. In this paper, 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.
出处
《重庆钢研》
2009年第1期10-15,共6页
Chongqing Steel Research