不同焊后热处理方式对P92钢近表面组织性能的影响

分别采用电阻加热及感应加热方式对P92 钢进行焊后热处理，分析了这2 种加热方式对P92 钢近表面组织性能的影响。结果表明：感应加热趋肤效应不会对趋肤层内母材产生明显影响；无论采用电阻加热还是感应加热，母材近表面碳化物的体积均明显大于母材中部碳化物，导致近表层母材金属抗拉强度降低，在满足热处理后焊缝性能要求的前提下，应尽可能降低热处理温度。

Effect of Different Post-weld Heat Treatment on Near-surface Microstructures and Mechanical Properties of P92 Steel

Two different heating methods,including resistance heating and induction heating,were used for post-weld heat treatment of the P92 steel and an analysis was made of the effect of the two heating methods on the near-surface microstructures and mechanical properties of the P92 steel.The results show that the induction heating treatment will not have obvious skin-effect on the skin metal;for both the resistance heating and induction heating methods,the carbide volume on the near-surface is obvious larger than ...