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Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003736
EISBN: 978-1-62708-177-1
... Abstract Martensite is a metastable structure that forms during athermal (nonisothermal) conditions. This article reviews the crystallographic theory, morphologies, orientation relationships, habit plane, and transformation temperature of ferrous martensite microstructures. It examines...
Published: 01 June 2016
Fig. 7 Martensite in metastable β′-phase aluminum bronze. (a) Martensite needles in Cu-11.8wt%Al alloy homogenized at 800 °C (1472 °F) and water quenched. (b) Martensite running from bottom right to top left. Cu-11.8wt%Al alloy is heated to 900 °C (1650 °F), held for 1 h, and water quenched More
Published: 01 August 2013
Fig. 26 Light micrographs of morphologies of martensite. (a) Lath martensite in low-carbon steel (0.03C-2.0Mn, wt%) at original magnification: 100×. (b) Plate martensite in matrix of retained austenite in a high-carbon (1.2 wt% C) steel at 1000×. (c) Mixed morphology of lath martensite More
Published: 01 August 2013
Fig. 11 Hardness values for 50% martensite and 100% martensite conditions in quenched carbon steels as a function of carbon. With 50% martensite, the hardness depends on the structure of the other 50% and residual or alloying. Steel with more alloying would be at the top of the band. Source More