摘要
对含微量合金元素V和Mo的新型建筑耐火耐候钢进行了不同温度和时间的热处理,并进行了高温力学性能和耐腐蚀性能的测试与分析。结果表明:随热处理温度从525℃提高至625℃或热处理时间从25 min延长至40min,600℃抗拉强度和屈服强度均先增大后减小,断后伸长率先减小后基本不变,240 h盐雾腐蚀的质量损失率前期减小。新型建筑耐火耐候钢的热处理温度和热处理时间分别优选为575℃和35 min。
The heat treatments of new construction refractory and weather-resistance steel containing trace alloying elements V and Mo were carried out at different temperatures and time. The mechanical properties and corrosion resistance at high temperature were tested and analyzed. The results show that with heat treatment temperature increasing from 525 ℃ to 625 ℃ or heat treatment time prolonging from 25 min to 40 min, the tensile strength and yield strength at 600 ℃ increase firstly and then decrease, the elongation and the mass loss rate after 240 h salt spray corrosion decrease in earlier stage. The heat treatment temperature and heat treatment time of new eonstruction refractory and weather-resistance steel are preferable 575 ℃and 35 min, respectively.
出处
《热加工工艺》
CSCD
北大核心
2017年第8期214-216,219,共4页
Hot Working Technology
基金
广东省交通科技资助项目(2013-02-020)
关键词
热处理温度
热处理时间
工艺优化
建筑耐火耐候钢
高温力学性能
heat treatment temperature
heat treatment time
process optimization
construction refractory and weather-resistance steel
high temperature mechanical properties
