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    Chapter 3-Physical Metallurgy of High-Chromium Steels

    Published: Jan 2001

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    The high (9-12%) chromium steels are either fully austenitic or have a duplex (austenite plus δ-ferrite) structure at austenitizing temperatures in the range 850 to 1200°C. The austenite phase transforms to martensite during air cooling or rapid quenching to ambient temperature, and the steels are subsequently tempered to obtain a good combination of strength, ductility, and toughness. The physical metallurgical basis of the development of the high-chromium martensitic steels has been reviewed elsewhere [1-3]; the factors determining the constitution, transformation, and tempering characteristics are briefly surveyed in this chapter.

    Committee/Subcommittee: E10.02

    DOI: 10.1520/MONO10018M

    ISBN10: 0-8031-2090-7
    ISBN13: 978-0-8031-2090-7