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Effect of High Temperature Tempering on The Mechanical Properties and Microstructure of The Modified 410 Martensitic Stainless Steel

机译:高温回火对改进的410马氏体不锈钢力学性能和微观结构的影响

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This paper reports the influence of high tempering temperature and holding time on the mechanical properties and microstructure of the recently modified 410 martensitic stainless steel. The modified steel was prepared by induction melting followed by hot forging, quenching and tempering. The hardness and tensile strength of the steels decreased with increasing tempering temperature from 600 to 700 °C and with increasing holding time from 1 to 6 h. Based on micro structural images, it was observed the coarsening of lath martensite and of the metal carbides as well. However, a relatively high hardness and strength were still exibited by this steel after tempering at a such high temperature of 600-700 °C. The partition of Mo into the carbides identified by EDS analysis may correlate with this situation.
机译:本文报告了高回火温度和保持时间对最近改良的410马氏体不锈钢的力学性能和微观结构的影响。通过感应熔化制备改性钢,然后进行热锻,淬火和回火。钢的硬度和拉伸强度随着600至700℃的温度升高而增加,并且随着1至6小时的增加。基于微结构图像,观察到Lath马氏体和金属碳化物的粗化。然而,在600-700℃的这种高温下回火后,这种钢仍然在该钢中仍然仍然高度的硬度和强度。 MO进入由EDS分析鉴定的碳化物的分区可以与这种情况相关。

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