Structural and morphological investigations of an atomized iron powder. I. Investigation of particles of a starting powder
- 18 Downloads
The particles of practically all fractions of a pig iron powder generally have internal voids and a conchoidal structure. The voids in the particles form as a result of a carbon oxidation reaction taking place during the atomization of molten metal, which is accompanied by evolution of gaseous products. The degree of oxidation of fine atomized powder particles is greater than that of large ones. The oxide phase in the powder is composed of almost pure iron oxides: FeO, Fe3O4, and, to a smaller extent,α-Fe2O3.
KeywordsFe3O4 Iron Oxide Oxidation Reaction Gaseous Product Powder Particle
Unable to display preview. Download preview PDF.
- 1.É. Ch. Pioro, N. Ch. Pioro, A. G. Zherdin, and V. P. Smirnov, “Properties of an atomized iron powder of branched particle shape,” Poroshk. Metall., No. 10, 1–7 (1984).Google Scholar
- 2.A. Yu. Polyakov, Theoretical Principles of Steelmaking-Bath Refining [in Russian], Nauka, Moscow (1975).Google Scholar
- 3.É. Ch. Pioro, N. Ch. Pioro, and A. V. Martyshev, “Mechanism of carbon oxidation during the atomization of iron-carbon melts and formation of gas voids inpowder particles,” in: The Pouring of Boiling Steel [in Russian], Inst. Probl. Litiya, Akad. Nauk Ukr. SSR, Kiev (1984), pp. 89–98.Google Scholar
- 4.G. Benard (ed.), Oxidation of Metals [Russian translation], Metallurgiya, Moscow (1969).Google Scholar
- 5.A. A. Ivan'ko, Hardness (Handbook) [in Russian], Naukova Dumka, Kiev (1968).Google Scholar