publication . Article . 2009

Criterion for selection the optimal physical and chemical properties of cobalt aluminate powder used in investment casting process

M. Zielińska; J. Sieniawski; B. Gajecka;
Open Access English
  • Published: 01 Jul 2009 Journal: Archives of Foundry Engineering (issn: 1897-3310, Copyright policy)
  • Publisher: Sciendo
The aim of this work was to determine physical and chemical properties of cobalt aluminate (CoAl2O4) modifiers produced by different companies and the influence of different types of modifiers on the grain size of high temperature creep resisting superalloys: Inconel 713C, René 77 and MAR-M 509.The first stage of the research work took over the investigations of physical and chemical properties of cobalt aluminate manufactured by three different companies: Remet, Mason Color and Permedia Lublin. There were determined the grain size distribution of cobalt aluminate powder, the average diameter and morphology of powder particles, phase composition, as well as sodi...
free text keywords: Investment casting, Nickel and cobalt based superalloys, Macrostructure, Modification, Cobalt aluminate, Materials of engineering and construction. Mechanics of materials, TA401-492
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