0.1C–11Mn medium manganese steel treated by quenching and tempering process

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Abstract

In this work, we developed a third-generation automobile steel with high strength and elongation of 0.1C–11Mn medium manganese steel using a simple quenching and low-temperature tempering heat treatment procedure. At different austenitisation temperatures, the microstructure and mechanical properties of manganese steel were examined. The microstructure included tempered martensite (TM), austenite, and ultra-fine-grained ferrite. The steel achieved the highest strength and elongation of 39.1GPa·% when it was quenched at 630°C for 10 min and tempered at 450°C for 5 min. In conclusion, dislocation strengthening was the primary factor to increase yield strength. At 630°C, the steel achieved its best mechanical properties because of a higher austenite stability, work-hardening capability, and synergistic impact of ultra-fine-grained ferrite and martensite.

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APA

Zhao, Y., Yang, D., Yin, X., Zhiying, Mo, Wang, S., … Zhao, Z. (2022). 0.1C–11Mn medium manganese steel treated by quenching and tempering process. Materials Science and Technology (United Kingdom), 38(17), 1490–1500. https://doi.org/10.1080/02670836.2022.2087027

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