PSI - Issue 32

ScienceDirect StructuralIntegrity Procedia 00 (2021) 000 – 000 StructuralIntegrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sci nceDire t Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 32 (2021) 284–290

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Abstract The paper reports on phase composition, microhardness and wear resistance of compacts and coatings based on η -carbides (Fe,W) 6 C and (Fe,W) 12 C produced by mechanical alloying of tungsten and iron powders in petroleum ether. The compacts have been prepared by magnetic-pulse compacting, and the coatings being formed on iron substrate by the selective laser sintering. The compacts exhibit microhardness up to 9.6 GPa and high abrasive wear resistance. Friction coefficients are 0.27-0.6 and 0.33 0.53 in frictional pairs with a steel disc and a ball made of WC- Co alloy, respectively, and wear not exceeding 10 µm in the tribo pairs. The coatings have a microhardness of 16 GPa and friction coefficients of 0.28 and 0.2 for friction with balls made of steel and WC-Co, respectively, with no wear being practically observed in tribo-pairs. Combining the mechanosynthesis and selective laser sintering is shown to be very efficient to fabricate coatings based on η -carbides (Fe,W) 6 C and (Fe,W) 12 C possessing high values of hardness and wear resistance. © 2021 The Authors.Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Keywords: iron-tungsten carbide, mechanical alloying, coating, compact, wear resistance XXIIth Winter School on Continuous Media Mechanics Phase composition and wear resistance of compacts and coatings based on carbides fabricated in W-Fe-C system by wet mechanical alloying M.A. Eryomina a *, S.F. Lomayeva a , E.V. Kharanzhevsky b , V.V. Tarasov a , V.B. Dementyev a a Udmurt Federal Research Centre UB RAS, st. them. Tatiana Baramzina, 34, Izhevsk, 426067, Russia b Udmurt State U iv rsity, Universit tskaya st., 1, Izhevsk, 426034, Russia Abstract The paper reports on phase composition, microhardness and wear resistance of compacts and coatings based on η -carbides (Fe,W) 6 C and (Fe,W) 12 C produced by mechanical lloying of tungsten and iron powders in petroleum ether. The c mpa ts have be n prep re by magnetic-puls compacting, and the coatings being formed on iron substra e by the selectiv laser sintering. Th com cts exhibit microhardness u to 9.6 GPa and high abrasive wea r sistance. Friction coeffici nts are 0.27-0.6 and 0.33 0.53 in frictional pairs with a steel disc and a ball m de of WC- Co alloy, respectively, and wear not exceeding 10 µm in the tribo pairs. The c atings have a microhardness of 16 GP and friction coefficients of 0.28 and 0.2 for friction with balls made of steel and WC-Co, respectively, with no wear being practic lly observed in tribo-pairs. Combining the mechanosynthesis an selec ive laser sintering i shown to be very efficient to f br te c atings based on η -carbides (Fe,W) 6 C and (Fe,W) 12 C possessing h gh value of hardnes and wear resistance. © 2021 The Authors.Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review u der re ponsibility of e scientific committe of the XXIIth Winter School on Continuous Media Mechanics” K ywords: iron-tungsten carbide, mechanical alloying, coating, compac , wear resistance XXIIth Winter School on Continuous Media Mechanics Phase composition and wear resistance of compacts and coatings based on carbides fabricated in W-Fe-C system by wet mechanical alloying M.A. Eryomina a *, S.F. Lomayeva a , E.V. Kharanzhevsky b , V.V. Tarasov a , V.B. Dementyev a a Udmurt Federal Research Centre UB RAS, st. them. Tatiana Baramzina, 34, Izhevsk, 426067, Russia b Udmurt State University, Universitetskaya st., 1, Izhevsk, 426034, Russia

* Corresponding author. Tel.: +7-341-221-2655. E-mail address: mrere@mail.ru * Corresponding author. Tel.: +7-341-221-2655. E-mail ad ress: mrere@mail.ru

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review u der re ponsibility of scientific committe of the XXIIth Winter School on Continuous Media Mechanics”

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 10.1016/j.prostr.2021.09.040