Effect of putrefied quenching oil on the transformation behaviour of railway spring steel.

Matjeke, V.J.; Mukwevho, G; Merwe, J.W. van der

doi:10.1088/1757-899x/430/1/012043

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Alloy carbides have an important effect on the properties of structural steels, such as in the strengthening and ductiling of microalloyed steels [1][2][3]. Molybdenum carbides can be used to enhance the resistance to static fracture of components steel, for example springs, bolts and power plant structural parts [4][5][6]. The carbides are mainly composed of M 6 C, M 3 C, M 23 C 6 and M 7 C 3 (M = Fe, W or Mo) [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)

Zheng¹,

Hou²,

Zhang³

et al. 2022

J. Phys.: Condens. Matter

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First-principles calculations are used to study the structure, magnetism and mechanical anisotropy properties of M6C (M=Fe, Mo) carbides. The stability of alloy carbide M6C can be improved when Mo atoms occupy the 48f Wyckoff position. Fe3Mo3C with Mo atoms occupying 48f position and Fe atoms occupying 16d and 32e positions has the best structural stability. The magnetic moment is triggered when the Fe content is approximately 0.5, suggesting that there exists a critical value between the paramagnetic nature and ferromagnetism. Carbides with Fe content above 0.5 have stronger magnetism. Higher Fe content corresponds to the stronger chemical bonding of carbides, resulting in improved elastic properties when Mo atoms are held in 48f position. The special carbides Fe4Mo2C and Fe3Mo3C (Fe at 48f site, Mo at 16d and 32e sites) correspond to the excellent mechanical properties. These results are helpful in providing a theoretical foundation of the possible direction for the advances of the excellent physical properties in Mo-containing steel.

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Section: Introductionmentioning

confidence: 99%

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)

Zheng¹,

Hou²,

Zhang³

et al. 2022

J. Phys.: Condens. Matter

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Failure analysis of a helical compression spring with relatively low spring index

Yetgin,

Karakaş,

Acar

et al. 2024

Engineering Failure Analysis

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Determination of Critical Transformation Temperatures for the Optimisation of Spring Steel Heat Treatment Processes

Matjeke

Merwe

Vithi

2021

Metals

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Bogie spring performance can be improved by using the exact heat treatment process parameters. The purpose of the study is to determine the critical transformation temperatures and investigate the effect of the cooling rates on microstructural and mechanical properties. The precise determination of the required cooling rates for the particular grade of steel is important in order to optimise the heat treatment process of heavy-duty compression helical spring manufacturing. A traditional heat treatment system for the manufacture of hot coiled springs requires heating the steel to homogenize austenite; then, it is decomposed to martensite by rapid cooling. By analyzing the transition properties by heating and differing cooling rates, this analysis examines the thermal behaviour of high strength spring steel. Using the dilatometer and differential scanning calorimeter, scanning electron microscope, optical microscope, and hardness checking, critical transition temperatures and cooling rates of three springs steels were measured. Although the thermal transformation of materials has been researched for decades using dilatometers, not all materials have been characterized. The research offers insights into the critical transformation temperatures for the defined grades of spring steel and the role of cooling rates in the material’s properties. Mechanical properties are influenced by the transition data obtained from the dilatometric analysis.

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Effect of putrefied quenching oil on the transformation behaviour of railway spring steel.

Cited by 3 publications

References 10 publications

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)

Failure analysis of a helical compression spring with relatively low spring index

Determination of Critical Transformation Temperatures for the Optimisation of Spring Steel Heat Treatment Processes

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Effect of putrefied quenching oil on the transformation behaviour of railway spring steel.

Cited by 3 publications

References 10 publications

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M6C (M = Fe, Mo)

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M6C (M = Fe, Mo)

Failure analysis of a helical compression spring with relatively low spring index

Determination of Critical Transformation Temperatures for the Optimisation of Spring Steel Heat Treatment Processes

Contact Info

Product

Resources

About

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)

Determination of the site preference on the structure, magnetism and mechanical anisotropy properties of Mo-containing alloy carbide M₆C (M = Fe, Mo)