October 3, 2025steel research international

Effect of Cooling Medium on Microstructure and Properties of Ultrahigh Strength Martensitic Quenched and Tempered Steel

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Oil-quenching significantly improves toughness and strength of steel, achieving an impressive tensile strength of 1392 MPa.
Charpy impact energy for oil-quenched steel is 61.0 J, more than other cooling methods like water or air.
Optimization of microstructural features such as dislocation density and grain size is vital for mechanical performance.
Findings stress the importance of understanding microstructure-property relationships in developing high-performance steels.

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Implication

This study evaluates how cooling mediums affect tensile strength and toughness in ultrahigh strength steel, indicating oil quenching offers superior balance.

Cite This Study

Wang et al. (2025) studied this question.

synapsesocial.com/papers/68e040f7a99c246f578b3cc3 https://doi.org/10.1002/srin.202500738

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Implication

This study evaluates how cooling mediums affect tensile strength and toughness in ultrahigh strength steel, indicating oil quenching offers superior balance.

Effect of Cooling Medium on Microstructure and Properties of Ultrahigh Strength Martensitic Quenched and Tempered Steel

Key Points

Discussion

Implication

Cite This Study

Effect of Cooling Medium on Microstructure and Properties of Ultrahigh Strength Martensitic Quenched and Tempered Steel

Key Points

Discussion

Implication

Cite This Study