摘要
本文针对在线淬火工艺生产16 mm、25 mm和30 mm的三种厚度Q690D试验钢板的组织观察,结合钢板性能进行了分析和讨论。结果表明,试验钢在线淬火后组织以板条马氏体为主,满足Q690D对组织的要求;在线淬火Q690D钢板具有高强度和高韧性良好匹配,较高的强度富余量为后续去应力回火提供了保证。
In this paper, the microstructure and properties of on-line quenched Q690D trial plates with 16 mm, ：25 mm and 30 mm thicknesses are analyzed and tested. And results show that the microstructure of trial plates is mainly lath martensite which satisfies the requirement to Q690D. And the on-line quenched Q690D plates have a good combo of high strength and high toughness and their high strength margin is a guarantee for subsequent relief tempering.
出处
《金属材料与冶金工程》
CAS
2016年第6期19-22,共4页
Metal Materials and Metallurgy Engineering
基金
钢板的耐腐蚀性控制技术(2016GK4036)
湖南省战略性新兴产业科技攻关类项目
关键词
在线淬火
组织
高强度
高韧性
on-line quenching
microstructure
high strength
high toughness
