Structural transformations of a gas-atomized Al62.5Cu25Fe12.5 alloy during detonation spraying, spark plasma sintering and hot pressing

Structural transformations of a gas-atomized Al62.5Cu25Fe12.5 alloy during detonation spraying, spark plasma sintering and hot pressing Full article

Journal

Science of Sintering
ISSN: 0350-820X

Output data

Year: 2021, Volume: 53, Number: 3, Pages: 379-386 Pages count : 8 DOI: 10.2298/sos2103379b

Tags

Detonation spraying; Microstructure; Quasicrystalline alloy; Spark plasma sintering

Authors

Batraev Igor ¹ , Wolf Witor ² , Bokhonov Boris ³ , Ukhina Arina ³ , Kuchumova Ivanna ^1,4 , Pal Amit ⁵ , Bataev Ivan А. ⁴ , Ulianitsky Vladimir ¹ , Dudina Dina ^1,3,4,5 , Botta Walter ⁶ , Jorge Alberto ^6,7,8

Affiliations

1	1 Lavrentyev Institute of Hydrodynamics SB RAS
2	Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais
3	Institute of Solid State Chemistry and Mechanochemistry SB RAS
4	Novosibirsk State Technical University
5	Novosibirsk State University
6	6 Department of Materials Science and Engineering, Federal University of São Carlos
7	7 Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS,
8	8 Univ. Grenoble Alpes, CNRS, Grenoble INP

Funding (1)

Министерство науки и высшего образования Российской Федерации

FWGG-2021-0005

In this work, we traced structural transformations of an Al62.5Cu25Fe12.5 alloy, in which a quasicrystalline icosahedral phase (i-phase) can be formed, upon spraying onto a substrate and consolidation from the powder into the bulk state. The Al62.5Cu25Fe12.5 powder was obtained by gas atomization and consisted of i-phase and τ-phase AlCu(Fe). The powder was detonation sprayed (DS) and consolidated by spark plasma sintering (SPS)/hot pressing (HP). During DS, the particles experienced partial or complete melting and rapid solidification, which resulted in the formation of coatings of a complex structure. The composite regions containing i-phase were inherited from the powder alloy. The fraction of the material that experienced melting solidified as β-phase AlFe(Cu) in the coating. It was suggested that the difficulty of obtaining i-phase upon post-spray annealing is related to aluminum depletion of the alloy during DS. During SPS and HP, the elemental composition of the alloy was preserved, while the exposure to an elevated temperature led to phase homogenization. SPS and HP conducted at 700ºC resulted in full densification and the formation of a single-phase quasicrystalline alloy. The sintered single-phase alloy showed a higher microhardness in comparison with the DS coatings.

Batraev I. , Wolf W. , Bokhonov B. , Ukhina A. , Kuchumova I. , Pal A. , Bataev I.А. , Ulianitsky V. , Dudina D. , Botta W. , Jorge A.
Structural transformations of a gas-atomized Al62.5Cu25Fe12.5 alloy during detonation spraying, spark plasma sintering and hot pressing
Science of Sintering. 2021. V.53. N3. P.379-386. DOI: 10.2298/sos2103379b WOS Scopus РИНЦ OpenAlex

Web of science:	WOS:000727708300007
Scopus:	2-s2.0-85117296290
Elibrary:	47514523
OpenAlex:	W3198892191

DB	Citing
Scopus	2
OpenAlex	2
Elibrary	3
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