Obtaining of Alumino-Matrix Alloys Al-Zr, Al-Zr-W by SHS-Metallurgy Method. (2019)

• Record Type: Journal Article
• Authors: Gostishchev, Victor; Kim, Eugenie; Ri, Ernst
• Is Part Of: Materials today. Volume 11:Part 1(2019)
• Page Start: 235
• Page End: 239
• Publication Date: 2019
• Subjects: aluminum alloys -- zirconium -- tungsten -- aluminothermic synthesis -- microstructure -- intermetallides; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2018.12.136
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The paper considers conditions for the synthesis of Al-Zr and Al-Zr-W alloys under aluminothermic reduction of zirconium oxide or mineral zirconium concentrate, baddeleyite. The alloys obtained are identified as aluminomatrix basing on the results of element and X-ray phase analysis. It is shown that the alloy synthesized from baddeleyite concentrate contains small amounts of impurities of silicon and oxygen (0, 5 % by weight). It is established that the alloys have a composite structure: inclusions of intermetallides Al 3 Zr and Al 4 W are distributed in the aluminum matrix, and they have the increased microhardness (7.9 and 4.5 GPa).