Effect of alloying on elastic properties of ternary Ni-Al-Ti system: Experimental validation

Sidnov, K. P.National University of Science and Technology MISIS, Russia; RAS, Russia (author)

Funding Agencies|Ministry of Education and Science of the Russian Federation [14.Y26.31.0005, K2-2014-001]; Tomsk State University Academic D. I. Mendeleev Fund Program [8.1.18.2015]; Swedish Foundation for Strategic Research (SSF) program SRL Grant [10-0026]; Swedish Research Council (VR) [2015-04391]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; Russian Foundation for Basic Researches [16-02-00797 a]
Using combustion synthesis approach we fabricated B2 NiAl intermetallic compound as well as quasibinary Ni(Al50Ti50) alloy, where half Al atoms are randomly substituted by transitional metal Ti. Youngs modulus for synthesized materials was measured and appeared to be 222 +/- 10 GPa for NiAl and 175 +/- 15 GPa for Ni(Al50Ti50) phases. Using first-principles simulations in the framework of the Density Functional Theory, we investigate the elastic properties of Ni(Al1-xTix) system, including single-crystal, as well as polycrystalline elastic moduli. Direct comparison of the experimental and theoretical values of the Youngs modulus demonstrates that the employed theoretical approach allows carefully predict elastic properties of NiAl-based intermetallics. In particular, we predict that alloying NiAl with Ti should increase the ductility of the intermetallic phase. (C) 2016 Elsevier B.V. All rights reserved.

NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
Combustion synthesis; NiAl-based superalloys; Ti doping; Module of elasticity; First-principles simulations; Ductility

Belov, D. S.National University of Science and Technology MISIS, Russia (author)
Ponomareva, A. V.National University of Science and Technology MISIS, Russia (author)
Abrikosov, IgorLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten(Swepub:liu)igoab43 (author)
Zharmukhambetova, A. M.National Research Tomsk State University, Russia (author)
Skripnyak, NataliaLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,National Research Tomsk State University, Russia(Swepub:liu)natsk33 (author)
Barannikova, S. A.National Research Tomsk State University, Russia; RAS, Russia (author)
Rogachev, A. S.National University of Science and Technology MISIS, Russia; RAS, Russia (author)
Rouvimov, S.University of Notre Dame, IN 46556 USA (author)
Mukasyan, A. S.University of Notre Dame, IN 46556 USA (author)
National University of Science and Technology MISIS, Russia; RAS, RussiaNational University of Science and Technology MISIS, Russia (creator_code:org_t)

In:Journal of Alloys and Compounds: ELSEVIER SCIENCE SA688, s. 534-5410925-83881873-4669

By the author/editor: Sidnov, K. P.; Belov, D. S.; Ponomareva, A. V ...; Abrikosov, Igor; Zharmukhambetova ...; Skripnyak, Natal ...; show more...; Barannikova, S. ...; Rogachev, A. S.; Rouvimov, S.; Mukasyan, A. S.; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.