【摘要】 对2Cr12MoNiV钢焊接热影响区的相变特征和预热温度、转变对热影响区δ铁素体量和晶粒度的影响作了研究和探讨。得出，在焊接12％Cr系列不锈钢时，含碳量的高低是确定合适焊接工艺必需考虑的重要因素。更多还原

【Abstract】 The phase translormation behavior of the welding HAZ in 2Cr12MoNiV steelas well as the eflects of preheat temperature and transformation on the amount of 5 ferriteand the grain size are investigated. It is concluded that the contcnt of carbon should be aconsiderable function when selecting proper conditions for 12% Cr martensitic stainless steelswelding.更多还原