CAJ | 학술논문

结合湘钢新一代石油储罐用钢板不同热处理工艺组织和力学性能分析，采用焊接热模拟，研究不同热处理工艺的钢板对大热输入焊接粗晶区韧性的影响。研究表明：采用直接淬火（ DQ）的钢板，第二相粒子比在离线淬火（ RQ）工艺的数量多、尺寸小，大热输入循环后原奥氏体晶粒尺寸小；同时在线淬火后，采用快速加热回火，大热输入焊接性能最佳。
결합상강신일대석유저관용강판불동열처리공예조직화역학성능분석，채용한접열모의，연구불동열처리공예적강판대대열수입한접조정구인성적영향。연구표명：채용직접쉬화（ DQ）적강판，제이상입자비재리선쉬화（ RQ）공예적수량다、척촌소，대열수입순배후원오씨체정립척촌소；동시재선쉬화후，채용쾌속가열회화，대열수입한접성능최가。
Microstructure and mechanical properties of different heat treatment are analyzed with steel oil storage tanks of a new generation of Xiangtan Steel ,using thermal simulation of welding steel plates of dif-ferent heat treatment processes for large heat input HAZ toughness .The studied shows that:the use of di-rect quenching of DQ steel plate ,the second phase particles than the quantity in the off -line quenching of RQ technology ,more small size ,high heat input after the circulation of small prior austenite grain size;at the same time,hardened steel is onlin ,tempered steel is rapidly heated ,large heat input welding steel best performance .