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A. P. Gulyaev and E. V. Petunina Metallographic Investigation of the Transformation of Austenite into Martensite [in Russian], Trudy TsNIITMASh, Book 47, Moscow, Mashgiz (1952).
Spiridonov, V.B., Skakov, Y.A. & Iordanskii, V.N. Microstructure of martensite in chromium-nickel steel. Met Sci Heat Treat 6, 630–632 (1964). https://doi.org/10.1007/BF00648705
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The structure of the martensite in steel of the transition type depends on the conditions under which it was produced: when martensite results from treatment at −70°C there is a predominance of plate-like crystals containing twins. Cooling from high temperature tempering, leads to the formation of needle-like crystals alone without any sign of internal twinning.
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Stacking defects may be areas of preferential nucleation of martensite crystals and at the same time limit the growth of martensite crystals.
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The following tables are starting parameters only. Every application is different and may require varying feeds and speeds from this chart.
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