由于这种碳成分的化学分离完全发生在固态中,产生的组织结构是一种细致的铁素体与渗碳体的机械混合物。
Since this chemical separation of the carbon component occurs entirely in the solid state, the resulting structure is a fine mechanical mixture of ferrite and cementite.
试验研究了钛铝基合金离子渗碳后的渗层组织结构、渗碳温度和时间对渗层厚度、表面硬度的影响。
The surface hardness, carburized structure and thickness of the carburized layer on the TiAl-alloy obtained through the different carburization technologies was studied.
研究了合金渗碳钢锻件的普通正火与等温正火工艺参数对组织、性能的影响。
The microstructure and property of alloy carburizing steel forged parts after general normalizing and isothermal normalizing were studied.
提高铁液的碳当量、增加孕育剂量和降低铸态组织的渗碳体数量,均有利于增加石墨球数量。
Adding of carbon equivalent and the amount of inoculant can reduce the amount of as cast carbide and increase the number of nodular graphite.
采用X-射线衍射仪、透射电镜研究了可锻铸铁白口组织中硅对共晶渗碳体点阵参数、晶胞体积及晶体缺陷的影响。
The effect of Si on the crystal lattice parameters, lattice volume and crystal defects of the eutectic cementite in malleable cast iron has been studied by using X ray diffractometer and TEM.
共析分解是个自组织过程,具有铁素体和渗碳体互为领先相的整合机制。
The eutectoid decomposition is a self organization process, which is characterized by the integrated mechanism that ferrite and cementite acted as prevenient phase alternatively.
结果表明,两种渗碳管的组织、合金元素分布及导磁性存在着显著差别。
It is shown that the microstructures, alloying element distribution and magnetic conductivity of P tude remarkably differ from those of s tube.
分析结果表明,铸锭中分布不均匀的非金属夹杂物和组织中过量分布于晶界的贝氏体和三次渗碳体是导致冷镦开裂的原因。
It was revealed that: inhomogeneous distribution of the non-metallic inclusion and excessive bainite and tertiary cementite is the cause of cracking.
本试验用离子渗碳的方法对其进行了改性,处理后获得了无共晶莱氏体组织的均匀细小的碳化物,从而改善了组织,提高了性能。
After treatment, uniform and fine carbonization of no ledeburite organization were obtained. Therefore, we refined the organization of stainless steel and improved its property.
研究了低碳钢在铸铁液中进行高温短时渗碳的动力学,并分析了渗层组织和渗碳的机制。
The kinetics of high-temperature and short-term Carburizing in liquid cast iron was studied.
结果表明,特大型轴承矫正渗碳淬火后金相组织、硬度都达到技术要求。
The results showed that, the microstructure and hardness of oversized bearings could meet the technologic requirement after carburization and quenching.
白口铸铁的组织中含有相当数量的渗碳体,通常被认为难以进行塑性加工。
White cast iron contains a large amount of cementite which are considered to be the major element making hot-plastic deformation difficult.
采用电子探针及X射线衍射仪测定了可锻铸铁白口组织中硅的分布和硅对渗碳体点阵参数的影响。
The distribution of silicon in as-cast white iron was studied using electron probe microanalysis. Effect of silicon on lattice constant of the cementite was also studied using X-ray diffraction.
研究了两种合金渗碳钢锻件普通正火和等温正火的显微组织和性能。
The microstructure and the property of two low carbon alloy steel forged parts were compared for parts after isothermal normalizing with those after ordinary normalizing.
并用透射电镜、扫描电镜研究了珠光体组织的演变特点和渗碳体的变形。
The microstructure evolution of pearlitic steel in ECAP was investigated by means of transmission electron microscope and scanning electron microscope.
经淬火及回火后的合金层具有高速钢组织及性能。对渗金属层渗碳后的组织进行了电子显微分析。
The carburized alloyed layer possesses high density of finery and dispersed alloy carbides for the high concentrations of W, Mo and their affinities with carbon.
研究了热处理工艺对渗碳轴承钢组织、力学性能的影响规律,并探讨了强韧化机制。
The effect of heat treatment process on microstructure and mechanical properties of bearing steel was studied, and the mechanism of strengthening-toughening of the steel was also discussed.
本文探讨了2 0钢在铸铁浴中经不同温度及时间渗碳的渗层组织。
The microstructure of carburized layer in 20 steel cast-iron molten bath carburized at different temperature and time was studied in the paper.
本文探讨了2 0钢在铸铁浴中经不同温度及时间渗碳的渗层组织。
The microstructure of carburized layer in 20 steel cast-iron molten bath carburized at different temperature and time was studied in the paper.
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