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采用焊接热模拟技术，对００Ｃｒ２５Ｎｉ７Ｍｏ３Ｎ双相不锈钢进行几种线能量下的多层焊ＨＡＺ 组织模拟结果表明，γ相的数量和形貌、铁素体晶粒尺寸以及析出相对００Ｃｒ２５Ｎｉ７Ｍｏ３Ｎ双相不锈钢ＨＡＺ组织及韧性均有一定的影响．当线能量Ｅ＝２０ｋＪ／ｃｍ、一次峰值温度Ｔｐ１－１３００℃、二次峰值温 度Ｔｐ２＝１１００℃时，冲击韧性值达２２４Ｊ．为制定此钢种的焊接工艺提供了重要的依据．
The welding heat simulation technique was used to simulate the HAZ microstructure of 00Cr25Ni7Mo3N duplex stainless steel under several line energies. The results show that the number and morphology of γ phase, the grain size of ferrite and the precipitation of HAZ in 00Cr25Ni7Mo3N duplex stainless steel And toughness have a certain impact. When the line energy E = 20kJ / cm, a peak temperature Tp1-1300 ℃, the secondary peak temperature Tp2 = 1100 ℃, the impact toughness value of 224J. In order to develop this type of steel welding process provides an important basis.