Austenitic high manganese (Mn) steels are often used in harsh environments due to their high toughness and wear resistance. Heat treatments are performed to engineer the microstructure of the steels and optimize their performance for the desired service conditions. This study investigated the effect of titanium (Ti) and heat treatment on the microstructure of cast high Mn steel (HMS) alloys. The results reveal that Ti addition contributed to grain refinement in the as cast and heat-treated conditions. In-situ observation of microstructure evolution up to 1125 °C confirmed the stability of precipitated TiC particles, while revealing a new mechanism of grain refinement during a solution annealing heat treatment.
A. Karanam et al., "Microstructure Evolution And Austenitic Grain Refinement Of Ti-Modified High Mn Steels During Solution Annealing Heat Treatment," Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Springer; ASM International, Jan 2023.
The definitive version is available at https://doi.org/10.1007/s11661-023-07254-y
Materials Science and Engineering
International Standard Serial Number (ISSN)
Article - Journal
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01 Jan 2023