Also known as: ms.
MS has various meanings in the Science category. Discover the full forms, definitions, and usage contexts of MS in Science.
A microstructural form found in steel when it has been cooled from its austenitic state to room temperature at a greater than the critical cooling rate of the steel. It is a metastable solid solution with a body-centered tetragonal structure and its hardness depends primarily upon the carbon content of the steel. A distinctive neddle like structure existing in steel as a transition stage in the transformation of austenite. It is the hardest constituent of steel of eutectoid composition. It is produced by rapid cooling from quenching temperature and is the chief constituent of hardened carbon tool steels.
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