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首页> 外文会议>International Powder Metallurgy Congress Exhibition >Influence of Austempering Parameters on the Microstructure and Mechanical Properties of Sintered Low Alloyed Steels
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Influence of Austempering Parameters on the Microstructure and Mechanical Properties of Sintered Low Alloyed Steels

机译：奥斯特静脉参数对烧结低合金钢微观结构和力学性能的影响

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The application of the austempering treatment facilitates the achievement of high strength, good ductility and toughness because of a predominantly bainitic microstructure in the sintered steel. The final strength and ductility depend upon the relative amount of the different phases, ferrite, pearlite and bainite present in the austempered steel. This study explains the influence of the process parameters carrying out the austempering treatment in different environments. Astaloy CrL and Astaloy Mo were pressed to a green density of 7.3 g/cm~3 and sintered at 1120°C and 1250°C that ensures a decrease in the open porosity. The application of the austempering treatment comprises austenitizing at 860°C for 2h followed by quenching in different baths at 290°C. The discussion is based on the comparison of the as-sintered state and the austempered results, establishing a relationship between mechanical properties and the phases present in the final microstructures.
机译：奥斯特普治疗的应用有助于实现高强度，良好的延展性和韧性，因为烧结钢中主要的贝氏体微观结构是主要的。最终的强度和延展性取决于不同阶段，铁素体，珠光体和贝氏体存在于奥氏体钢中的相对量。本研究阐述了在不同环境中实施奥斯特术治疗的过程参数的影响。将Astaloy CRL和Astaloy Mo被压至绿色密度为7.3g / cm〜3，并在1120℃和1250℃下烧结，确保开放孔隙率降低。稳定性处理的施加包括在860℃下奥氏体化，然后在290℃下在不同的浴中淬灭。讨论基于对烧结状态和不稳定的结果的比较，在最终微观结构中建立机械性能与存在的相位之间的关系。

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