摘要
研究不同热处理工艺对X80厚壁试板焊缝冲击性能的影响。结果表明,正火处理可以消除焊缝组织遗传性,细化晶粒尺寸,使得M/A组元细化,弥散分布在板条状贝氏体上,从而提高焊缝壁厚中心的低温冲击性能。
The effect of different heat treatments on low temperature impact toughness of the thick wall X80 welding seam was studied.The results show that the structural inheritance of welding is climinated by normalizing treatment,and the grain size is reduced,the M/A is refined and uniformly distributed in lath-shaped bainite.Therefore the low temperature impact toughness of wall thickness center of welding is improved.
出处
《金属热处理》
CAS
CSCD
北大核心
2012年第4期105-108,共4页
Heat Treatment of Metals
关键词
X80管线钢
冲击性能
组织遗传性
X80 pipeline steel
impact toughness
structural inheritance
