Oxidation of chromium steels during carburizing in solid carburizers

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1976 English Publisher:Springer Science and Business Media LLCJournal:Metal Science and Heat Treatment, volume 18, pages 496-499 (issn: 0026-0673, eissn: 1573-8973,

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Authors: V. M. Pereverzev; V. M. Barten'ev; V. N. Burmistrov;

doi: 10.1007/bf00774929

Oxidation of chromium steels during carburizing in solid carburizers

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Abstract

1. The addition of soda to solid carburizer in place of barium carbonate leads to intercrystalline oxidation of chromium stainless steel (2Kh13) and accelerates the carburizing process. 2. At small chromium concentrations (steel ShKh15) carburizing in carburizers with soda is accompanied by internal oxidation (formation of globular carbides). 3. The oxidation of chromium steels in carburizers with soda sharply reduces the toughness, which can be restored by removal of the oxidized layer by grinding. 4. Chromium stainless steels should be carburized in carburizers containing the optimal concentration of soda (5–7%), and steels of the ShKh15 type in carburizers with barium carbonate but no soda.

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