摘要
评价了SQ600MC的焊接性。采用热模拟测定了首钢生产的SQ600MC钢焊接连续冷却转变曲线,得到SQ600MC热影响区粗晶区的组织转变规律;最高硬度试验和斜Y冷裂纹敏感性试验结果表明SQ600MC具有低的冷裂敏感性;焊接工艺试验表明热输入在14.26～20.16 kJ/cm范围内SQ600MC焊接接头的力学性能够满足使用要求。
The article evaluates the weldability of SQ600MC.The welding continuous cooling transformation curve of Shougang＇ SQ600MC was determinated and the transformation regularity of coarse grain zone＇ microstructure was acquired.The results of maximum hardness test and Y-slit type cracking test indicated that the cooling crack sensibility of SQ600MC is lower.While the heat input from 14.26 to 20.16 kJ/cm, the mechanical properties of welding joint satisfied operation requirement.
出处
《电焊机》
北大核心
2011年第5期93-96,共4页
Electric Welding Machine
