4Kh4N5M4F2 模具钢的回火脆性

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2024-06-18 DOI:10.1007/s11003-024-00822-6

O. M. Sydorchuk, K. O. Gogaev, O. K. Radchenko, M. Geybat Oglu Askerov, V. I. Bondarchuk

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引用次数: 0

摘要

研究了经热处理的 4Kh4N5M4F2 钢在操作过程中的可调奥氏体转变。确定了该钢回火脆性的温度范围（450-500°C）。测定了样品在不同回火温度和 1100°C 淬火后的冲击韧性，结果表明，在 475°C 回火后，冲击韧性达到了室温下的最小值（15 J cm2）。分析了镍作为 Fe1-xNix 替代元素的作用，并记录了固溶体中 Me6C 碳化物相沿晶界的偏析，这导致了冲击韧性的降低和钢脆性的增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Tempering Brittleness of Die 4Kh4N5M4F2 Steel

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Tempering Brittleness of Die 4Kh4N5M4F2 Steel

Heat-treated 4Kh4N5M4F2 steel with adjustable austenitic transformation during operation was studied. The temperature range (450–500°C) in which the tempering brittleness of this steel was manifested was established. The impact toughness of the samples after different tempering temperatures and after steel hardening from 1100°C was determined and it was shown that after tempering at 475°C the minimum value of the impact toughness at room temperature (15 J cm² ) was reached. The role of Ni as a Fe_1–xNi_x replacement element was analyzed, and the segregation along the grain boundaries of the Me₆C carbide phase in the solid solution, which caused a decrease in the impact toughness and an increase in the steel brittleness, was recorded.

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来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.