【摘要】 本文研究了M17镍基铸造高温合金缓进磨削烧伤时磨削力与磨削温度的变化、表面层金相组织及化学成份的变化以及烧伤表面的形貌。试验结果表明,所有烧伤试件都未发现有容易引起脆断的σ相存在,烧伤试件表面碳、氧原子浓度较高,扩散层较深。试验还得出了用以避免烧伤的磨削参数供生产参考。更多还原

【Abstract】 In this paper were investigated variation of grinding forceand temperature, changes in microstructure and distribution of thechemical constituents in burned surface layer as well as topographyof ground surface for M17 nikel based cast super alloy during creepfeed grinding. The experiment results show that the σ-phase which isliable to cause embrittlement does not exist in any burned specimens.The carbon and oxygen atomic concentrations are higher in the surfaceof burned specimens, and the diffusion layer has a remarkable depth.The grinding parameters obtained for avoiding burning are presentedfor reference in production.更多还原