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.
出处
《热力发电》
CAS
北大核心
2008年第1期121-124,共4页
Thermal Power Generation
关键词
焊接
热模拟
焊接粗晶区
韧性
再热脆化
weld
thermal simulation
weld coarse crystal region
stiffness
reheat embrittlement
