Anomalous oxidation of sintered porous steels in the process of steam oxide treatment / Fainshmidt E.M., Baskakov A.P., Pumpyanskaya T.A., Zyryanov V.G. // Metal Science and Heat Treatment. - 1998. - V. 40, l. 7-8. - P. 284-288.

ISSN:

00260673

Type:

Article

Abstract:

Parts manufactured by pressing from iron-base powders possess a certain porosity. The pores form a system of communicating capillaries inside the part which absorb the ambient products (gases from the atmosphere, dissolved substances from solutions) under the action of the capillary forces and diffusion. This causes surface and internal corrosion of the material. In order to prevent oxidation of parts produced from powder materials in their transportation, storage, and operation their surface should be coated by a thin oxide film (as in blueing) in which the pores are closed by the oxides. The results of a study of the composition of oxide phases in sintered porous steels after a steam oxide treatment by two regimes are presented.

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032237601&partnerID=40&md5=49d3891379a6dc11b610d61a43b677a7
Affiliations	Nizny Tagil Institute, Ural State Engineering University, Ekaterinburg, Russian Federation; Inst. of High-Temperature Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russian Federation
References	Knunyants, I.L., (1963) A Brief Chemical Encyclopedia in 7 Volumes, Vol. 2 [in Russian], 2. , Sov. Entsiklopedia, Moscow; Apininskaya, L.M., Radomysel'skii, I.D., (1975) Galvanic and Chemical Coats of Sintered Parts Based on Iron [in Russian], , Naukova Dumka, Kiev; (1972) OST 3-943-72, Sintered, Structural and Anti-friction Parts Based on Iron [in Russian], , Gosstandart, Moscow; Szeki, P., Abhandl. Deutch. Akad. Wiss., , Berlin; (1966) Rl. Math. Phys. und Techn., 1, p. 357; Bernar, J., (1969) Oxidation of Metals. Vol. 2 [Russian Translation], 2. , Metallurgiya, Moscow; Vashchenko, A.I., (1972) Oxidation and Decarburization of Steel [in Russian], , Metallurgiya, Moscow; Baskakov, A.P., (1974) Heating and Cooling of Metals in a Fluidized Bed [in Russian], , Metallurgiya, Moscow; Zavarov, A.S., Baskakov, A.P., Fainshmidt, E.M., Use of a fluidized layer for heat treatment and surface impregnation (1984) Metalloved. Term. Obrab. Met., 10, pp. 35-40; Fainshmidt, E.M., Baskakov, A.P., Pumpyanskaya, T.A., Steam oxide treatment in a fluidized bed of parts produced by the method of powder metallurgy (1982) Izv. Akad. Nauk SSSR. Metally, 1, pp. 102-104; Fainshmidt, E.M., Pumpyanskaya, T.A., Zyryanov, V.G., Oxidation kinetics of sintered steels in the process of rapid steam oxidation in a fluidized bed (1996) Fiz. Khim. Obrab. Mater, 2, pp. 117-124; Glushko, V.P., (1978) Thermodynamic Properties of Individual Substances, Vol. 2 [in Russian], 2. , Nauka, Moscow; Knuppel', G., (1973) Oxide and Vacuum Treatment of Steels [in Russian], , Metallurgiya, Moscow; USSR Inv. Certif. No. 1321523, MKI V22G 3/24, a method of steam oxide treatment of sintered parts based on iron powder (1987) Izobr. Otkr, 25; Fainshmidt, E.M., Pumpyanskaya, T.A., Power saving processes in powder metallurgy (1989) Science for Production [in Russian], pp. 36-37. , Ural Otd. Akad. Nauk SSSR, Sverdlovsk; Fainshmidt, E.M., Pumpyanskaya, T.A., Shalamov, A.A., (1986) Production of Powder Articles in Metallurgy [in Russian], , TsNIINTI, Moscow
Correspondence Address	Fainshmidt, E.M.; Nizny Tagil Institute, Ural State Engineering University, Ekaterinburg, Russian Federation
Language of Original Document	English
Abbreviated Source Title	Met. Sci. Heat Treat.
Source	Scopus