【摘要】 研究了贝氏体 马氏体耐磨钢板的组织及力学性能。结果表明 ,在低碳贝氏体钢基础上 ,通过加入一定量的硅元素 ,利用其在贝氏体组织转变过程中抑制碳化物析出的作用 ,得到由非等轴铁素体加马氏体和残留奥氏体(M A)岛或由板条状铁素体及其板条间残留奥氏体 (Ar)膜组成的贝氏体 马氏体组织 ,因此其性能既具有高强度、高硬度 ,又具有较高的低温冲击韧度。更多还原

【Abstract】 Microstructure and mechanical properties of the bainite-martensite steel plate were researched.The results show that some microstructure with bainite-martensite can be obtained in low-carbon bainitic steel if combined some silicon with a proper quantum.As the silicon element can restrain the precipitation of carbide during the bainite transformation,a bainite-martensite structure with non-equal axis ferrite and martensite and retained austenite (M-A) island or lath ferrite and retained austenite between lath is obtained,and the steel possesses a high strength,high hardness and a higher low temperature impact toughness.更多还原