采用热磁分析与直读光谱分析等相结合的方法,对低碳贝氏体渗碳钢的冷处理特性进行研究.结果表明,低碳贝氏体钢在1193 K×10 h渗碳空冷后,冷处理特征温度为Mt=139 K.经133 K×30 min深冷处理和473 K×60 min回火,有效硬化层残留奥氏体量约为12.0％,最高硬度值达到800 HV1.0以上.
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