对一种含0.27%C的工程机械用低合金高强度耐磨钢NM500进行轧制及两相区热处理试验,研究了普通高温轧制＋空冷、高温控制轧制＋空冷、高温控制轧制＋层流冷却以及低温控制轧制＋层流冷却工艺参数对实验钢两相区热处理后力学性能和三体冲击磨料磨损性能的影响。结果表明,轧制及轧后冷却工艺参数对试验钢两相区热处理后的性能影响较大,低温控制轧制＋层流冷却较好的细化了原始铁素体晶粒,在经过适当的两相区热处理后得到保留,有利于提高实验钢的低温冲击韧性和耐磨性能。
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