【摘要】 通过扫描电镜对镶铸高速钢—碳钢双金属耐磨材料的结合层及邻近区域的元素分布、显微组织及性能进行研究 ,并探讨了镶铸高速钢—碳钢双金属耐磨材料的结合机理。实验结果表明 :结合层的组织为铁素体和极细的多元共析体组织 ,由于界面元素发生扩散反应 ,结合层在结晶过程中产生新相 ,发生了高速钢—碳钢的冶金结合 ,结合层上无夹渣和缺陷 ,具有较好的结合品质更多还原

【Abstract】 The connection mechanism of high speed steel carbon cast steel by cast-in process was studied by analyzing the microstructure and the alloying component in the connection zone with scanning electron microscope observation . The experiment results show that fine pearlite and ferrite constitute microstructure of transition zone, the connection of metallurgy is formed because of the diffusion reaction, interface reaction and formation of the new compound phase during the cast in process .更多还原