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采用不同温度对2205双相不锈钢-Q345低合金钢爆炸复合板进行了退火,并对退火后的显微组织、显微硬度、疲劳寿命等进行了系统分析。结果表明,爆炸复合板结合界面有塑性变形,组织成纤维状;随着热处理温度的不断提高,界面附近的组织逐渐产生回复再结晶,界面显微硬度逐渐降低;复层耐蚀性在高于650℃热处理后明显降低;450℃热处理疲劳性能最佳。
Different temperatures were used to anneal 2205 duplex stainless steel-Q345 low alloy steel explosive composite plate, and the microstructure, microhardness and fatigue life after annealing were systematically analyzed. The results show that the interface of detonation composite plate has plastic deformation and fibrous structure. With the increasing of heat treatment temperature, the microstructure of the interface near the interface gradually recovers and recrystallizes, and the interface microhardness gradually decreases. 650 ℃ after heat treatment significantly reduced; 450 ℃ heat treatment the best fatigue performance.