【摘要】 研究了无碳化物贝氏体耐磨钢板组织、力学性能及焊接性能。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作用 ,得到由非等轴铁素体加马氏体和残余奥氏体 (M- A )岛或由板条状铁素体及其板条间残余奥氏体 (Ar)膜组成的无碳化物贝氏体组织 ,以此得到既具有高强度、高硬度 ,又具有较高的低温冲击韧性 ,同时具有较好的焊接性能更多还原

【Abstract】 The structure and mechanical properties and weld properties of bainite wear resistant steel plate without carbide were studied The results show: the structure of bainite without carbide is obtained if proper quantum of silicon is added into low carbon bainitic steel, which can restraint the production of carbide when bainite transforms The bainite consists of non equiaxed ferrite + martensite and retained austenite (M A) island or lath ferrite and retained austenite (Ar) The steel with this structure possesses high strength, high hardness, higher impact toughness of low temperature and better weld properties更多还原