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Evaluation of a New Alloy (PremoMet~R) for Seamless Rings Application

机译：用于无缝环应用的新合金（MENFOMET〜R）的评价

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摘要

PremoMet~R is a Co-free alloy designed to have high strength and high toughness properties after quenching and tempering. Considered as a possible substitute for production of components as gears and flanges, better fatigue life is expected for this material when it is compared to AISI 4140 and AISI 8630. Production of gears and flanges can be performed by open-die forging and ring-rolling. Optimal properties are achieved by control of alloy microstmcture, where heat-treating procedure is a key factor. Representative seamless rings were produced considering standard industrial conditions. Such rings were segmented and segments were exposed to selected heat treating conditions of quenching and tempering to evaluate microstructural evolution and mechanical properties promoted. In this contribution tensile, hardness and toughness properties are reported. Microstructural evaluation is complemented with SEM observation.
机译：FIMMOST〜R是一种无限的合金，设计成在淬火和回火后具有高强度和高韧性性能。被认为是作为齿轮和法兰的组件生产的可能替代品，当与AISI 4140和AISI 8630进行比较时，这种材料预期更好的疲劳寿命。齿轮和法兰的生产可以通过开孔锻造和环形轧制进行。通过控制合金微型测量来实现最佳性能，其中热处理程序是关键因素。考虑标准工业条件，生产了代表性的无缝环。将这种环被分段，并将区段暴露于选定的淬火和回火的热处理条件下，以评估微观结构的演化和促进的机械性能。在该贡献中，报告了拉伸，硬度和韧性特性。微观结构评估与SEM观察相辅相成。

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