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使用镀锌模拟器模拟了高强钢的退火过程:样品在镀锌模拟器中被加热到临界温度,保温75 s后快速冷却到室温。使用扫描电镜、辉光放电光谱法和光电子能谱仪分析了样品表面的氧化行为。结果表明,高强钢表面的氧化状态受退火时露点温度的影响,采用较高露点温度(-10℃)可以明显抑制高强钢表面氧化物的形成。添加0.3 mass%的铜可以抑制表面硅和锰的氧化物形成,提高抑制效果。
The galvanizing simulator was used to simulate the annealing process of high strength steel: the sample was heated to the critical temperature in the galvanometer simulator, and quickly cooled to room temperature after 75 s holding. The oxidation behavior of the sample surface was analyzed by scanning electron microscopy, glow discharge spectroscopy and photoelectron spectroscopy. The results show that the oxidation state on the surface of high strength steel is affected by the dew point temperature during annealing, and the higher dew point temperature (-10 ℃) can significantly inhibit the formation of oxides on the surface of high strength steel. Addition of 0.3 mass% of copper can suppress the formation of oxides of silicon and manganese on the surface and increase the inhibitory effect.