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本文阐述了太阳能相变硬化的基本原理,对三种有代表性的碳钢(亚共析钢、共析钢和过共析钢)试样进行定点及扫描加热自冷淬火,观察和分析了淬火层的宏观结构、显微组织及马氏体亚结构;测定了晶块尺寸、残余奥氏体量及碳浓度分布情况;讨论其特点及形成机理。
This paper describes the basic principles of solar phase hardening, the three representative carbon steel (hypoeutectoid steel, eutectoid steel and hypereutectoid steel) samples were sentinel and scanning heating self-quenching, observed and analyzed Quenching the macrostructure of the microstructure and the martensite substructure; measured the size of the ingot, residual austenite and carbon concentration distribution; discuss its characteristics and formation mechanism.