Study of Constitution Diagram Aluminum-Tantalum

Alloys of aluminum with tantalum were for the first time obtained by aluminothermic method in 1868 by Moriniak. Later these alloys were studied in the works of Schirmeister (1915) and Brouwer (1938), moreover Brouwer established that tantalum with aluminum forms the chemical compound TaA1, which has...

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Bibliographic Details
Main Authors: Glazov, V M, Mal'tsev, M V, Chistyakov, Yu D
Format: Report
Language:English
Subjects:
ALLOYS
ALUMINUM ALLOYS
CRYSTAL LATTICES
FOREIGN REPORTS
Metallurgy and Metallography
RUSSIAN LANGUAGE
TANTALUM
TRANSLATIONS
USSR
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Summary:Alloys of aluminum with tantalum were for the first time obtained by aluminothermic method in 1868 by Moriniak. Later these alloys were studied in the works of Schirmeister (1915) and Brouwer (1938), moreover Brouwer established that tantalum with aluminum forms the chemical compound TaA1, which has tetragonal crystal lattice with parameters a=5.422 angstroms and c=8.536 angstroms (1). However despite the fact that alloys of aluminum with tantalum long ago are obtained already, constitution diagram of this system is not studied until recently. In connection with the application of tantalum as the modifying additive in aluminum alloys an emergency in the construction of this diagram, without the knowledge by which it is not possible to give the correct explanation of the mechanism of the very process of the modification of primary grain. For this purpose was undertaken this work. Russian translations. Partially edited machine trans. of Izvestiya Akademii Nauk SSSR, Otdeleniye Tekhnicheskikh Nauk (USSR) n4 p131-136 Apr 1956.