焊后热处理对HCM2S钢焊接接头韧性的影响  

INFLUENCE OF HEAT TREATMENT AFTER WELDING UPON WELD-JOINT STIFFNESS OF HCM2S STEEL

作　　者：朱平[1] 史春元[1] 杨松[2] 王守革[2] 

机构地区：[1]大连交通大学,辽宁大连116028 [2]哈尔滨锅炉厂有限公司,黑龙江哈尔滨150040

出　　处：《热力发电》2008年第1期121-124,共4页Thermal Power Generation

摘　　要：采用焊接热模拟技术,确定了从焊接粗晶区韧性的角度考虑,取消HCM2S钢焊接对于预热是可行的,其合适的焊后热处理范围为(710～750)℃×2h。HCM2S钢焊接粗晶区在550℃左右时,存在再热脆化倾向,再热脆化的敏感温度范围需进一步研究确定。By using weld thermal simulation technology, and considering from view point of stiffness for the weld coarse crystal region, it is determined the elimination of preheating for HCM2S steel welding is fully feasible, the suitable heat treatment specification to be （710 - 750）℃ × 2 h. At temperature about 550℃, the weld coarse ccrystal region of HCM2S steel exist tendency of reheat embrittlement, however, the sensitive temperature range of reheat embrittlement is waiting to be further studied and determined.

关 键 词：焊接 热模拟 焊接粗晶区 韧性 再热脆化 

分 类 号：TG142[一般工业技术—材料科学与工程]