Automatic Welding, 2017, №09



2017 №09 (05)

DOI of Article 10.15407/as2017.09.06

2017 №09 (07)

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Avtomaticheskaya Svarka (Automatic Welding), #9, 2017, pp. 40-47
 

Structure and properties of alloyed powders based on Fe₃Al intermetallic for thermal spraying produced using mechanochemical synthesis method

Yu.S. Borisov¹, A.L. Borisova¹, A.N. Burlachenko¹, T.V. Tsymbalistaya¹ and C. Senderowski²

¹E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03150, Kiev, Ukraine. E-mail: office@paton.kiev.ua
²Military University of Technology in Warsaw Warsaw, Poland. E-mail:csenderowski@wat.edu.pl
 
Abstract
Physical-chemical processes taking place in formation of particles of iron intermetallics based on Fe₃Al alloyed with Cr, Zr, Mg, La and Ti under mechanochemical synthesis conditions were investigated. It is determined that the process of synthesis of alloyed powders passes a range of sequential stages with formation of solid solutions and finishes with formation of single-phase Fe₃Al(Cr, Zr), Fe₃Al (Mg), Fe₃Al (mg, La) and (Fe, Ti)₃ Al products with nanodispersed structure (size of CSA = 10–30 nm). The powders are designed for deposition of heat-resistant FeAl-coatings using thermal spraying and electric arc metallizing methods. 12 Ref., 2 Tables, 10 Figures.
Keywords: iron-based intermetallics, alloying, mechanochemical synthesis, powders, structure, properties, thermal spraying
 
Received:                18.05.17
Published:               10.10.17
 
 
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