Influence of Mn Addition on Fatigue Limit and Coaxing Effect in Ferritic Steel Containing Solute Carbon

IF 0.3 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2022-10-15 DOI:10.2355/tetsutohagane.tetsu-2019-092

Y. Uchida, M. Koyama, Y. Fukushima, K. Tsuzaki

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引用次数: 0

Abstract

: The influence of Mn addition on fatigue properties of ferritic steel containing solute carbon was exam-ined using rotating bending fatigue tests on water-quenched Fe-0.016C-1.9Mn ferritic-pearlitic steel containing 0.0035 mass% solute carbon in comparison with water-quenched Fe-C ferritic steels containing 0.0063-0.017 mass% solute carbon. The fatigue tests were carried out at ambient temperature around 300 K and a frequency of 50 Hz with a stress ratio of –1. The Fe-C-Mn steel exhibited a comparable hardness and fatigue limit to the water-quenched Fe-0.017C ferritic steel which contains about three times the amount of solute carbon than the Fe-C-Mn steel. In addition, the Fe-C-Mn steel exhibited a comparable coaxing effect to the Fe-0.017C ferritic steel when started from a stress amplitude near the fatigue limit. Crack initiation sites were changed by stress amplitude unlike in the Fe-C ferritic steels. Spe-cifically, intergranular cracks were observed at high stress amplitudes and transgranular cracks were observed at low stress amplitudes near fatigue limit. It was concluded that the Mn addition suppresses intergranular cracking at the low stress amplitudes.

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Mn添加对含溶质碳铁素体钢疲劳极限和诱导效应的影响

通过水淬铁素体钢(质量%溶质碳含量为0.0035)和水淬铁素体钢(质量%溶质碳含量为0.0063 ~ 0.017)的旋转弯曲疲劳试验，研究了Mn添加对含溶质碳的铁素体钢疲劳性能的影响。疲劳试验在300 K左右的环境温度和50 Hz的频率下进行，应力比为-1。Fe-C-Mn钢具有与水淬铁素体钢相当的硬度和疲劳极限，而水淬铁素体钢的溶质碳含量约为Fe-C-Mn钢的3倍。此外，当应力幅接近疲劳极限时，Fe-C-Mn钢表现出与Fe-0.017C铁素体钢相当的诱导效应。与Fe-C铁素体钢不同，裂纹萌生部位随应力幅值的变化而变化。试样在高应力幅值下出现沿晶裂纹，在接近疲劳极限的低应力幅值下出现穿晶裂纹。结果表明，Mn的加入抑制了低应力幅值下的晶间裂纹。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan 工程技术-冶金工程

CiteScore

0.70

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal ISIJ International first appeared in 1961 under the title Tetsu-to-Hagané Overseas. The title was changed in 1966 to Transactions of The Iron and Steel Institute of Japan and again in 1989 to the current ISIJ International. The journal provides an international medium for the publication of fundamental and technological aspects of the properties, structure, characterization and modeling, processing, fabrication, and environmental issues of iron and steel, along with related engineering materials. Classification I Fundamentals of High Temperature Processes II Ironmaking III Steelmaking IV Casting and Solidification V Instrumentation, Control, and System Engineering VI Chemical and Physical Analysis VII Forming Processing and Thermomechanical Treatment VIII Welding and Joining IX Surface Treatment and Corrosion X Transformations and Microstructures XI Mechanical Properties XII Physical Properties XIII New Materials and Processes XIV Social and Environmental Engineering.