退火工艺对冷轧低合金性能和组织的影响

Effect of annealing process on properties and microstructure of cold rolled low alloy

本文制定了几种不同保温温度相同保温时间的退火工艺,对Q345B冷轧低合金高强钢进行退火处理,分析了其性能和组织。发现在670℃保温温度下,获得的性能和组织较好,并由此制订了适合工业化生产的退火制度。

Cold-rolled low-alloy and high strength steel Q345B was annealed during several annealing processes with different holding temperature and the same holding time. By analyzing the rnicrostructure and mechanical properties, the result that was got during 670℃ was better. An annealing progress that is used to industrial production is designed.