中温压力容器钢12Cr2Mo1R的回火脆性
发布时间：2018-12-10 11:01
【摘要】：对中温压力容器钢12Cr2Mo1R进行最小模拟焊后热处理,并应用阶梯冷却实验对其焊后回火脆性进行了评定和分析。结果表明,在-78~20℃内,试样冲击断口形貌均为韧窝特征,冲击功值高于54 J,中温压力容器钢12Cr2Mo1R焊后具有优良的抗回火脆性,这是因为其含P极低,同时含有较高的Mo在一定程度上阻碍了P在晶界的偏聚。
[Abstract]:The minimum simulated postweld heat treatment was carried out for 12Cr2Mo1R of medium-temperature pressure vessel steel. The tempering brittleness after welding was evaluated and analyzed by step cooling experiment. The results show that at -7820 鈩，
本文编号：2370459
[Abstract]:The minimum simulated postweld heat treatment was carried out for 12Cr2Mo1R of medium-temperature pressure vessel steel. The tempering brittleness after welding was evaluated and analyzed by step cooling experiment. The results show that at -7820 鈩，
本文编号：2370459
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