Abstract:
The structure and properties of a polycrystalline Ni–Mn–In Heusler alloy have been studied after a plastic deformation by upsetting. An analysis of points of a martensitic and magnetic phase transformations shows that the martensite transformation takes place at temperatures lower than the Curie point. At high temperatures in the range 930–1110 K the alloy undergoes the phase transformation of ordered phase L21 to disordered phase B2, and the melting temperature of the alloy is 1245 K. The flow curves of the alloy cylindrical samples at temperatures 773, 873, and 973 K have been built. An analysis of the alloy microstructure after upsetting at a temperature of 773 K leads to the conclusion that many macrocracks are initiated in the sample. The treatment at 873 and 973 K causes a fragmentation of the grains with grain sizes from several to several dozen micrometers. However, the upsetting at 873 K leads to insignificant scatter in the grain sizes, and the microstructure is more homogeneous and worked out.
Citation:
I. I. Musabirov, I. I. Safarov, M. I. Nagimov, I. Z. Sharipov, V. V. Koledov, A. V. Mashirov, A. I. Rudskoy, R. R. Mulyukov, “Fine-grained structure and properties of a Ni2MnIn alloy after a settling plastic deformation”, Fizika Tverdogo Tela, 58:8 (2016), 1552–1557; Phys. Solid State, 58:8 (2016), 1605–1610
\Bibitem{MusSafNag16}
\by I.~I.~Musabirov, I.~I.~Safarov, M.~I.~Nagimov, I.~Z.~Sharipov, V.~V.~Koledov, A.~V.~Mashirov, A.~I.~Rudskoy, R.~R.~Mulyukov
\paper Fine-grained structure and properties of a Ni$_2$MnIn alloy after a settling plastic deformation
\jour Fizika Tverdogo Tela
\yr 2016
\vol 58
\issue 8
\pages 1552--1557
\mathnet{http://mi.mathnet.ru/ftt9889}
\elib{https://elibrary.ru/item.asp?id=27368715}
\transl
\jour Phys. Solid State
\yr 2016
\vol 58
\issue 8
\pages 1605--1610
\crossref{https://doi.org/10.1134/S1063783416080217}
Linking options:
https://www.mathnet.ru/eng/ftt9889
https://www.mathnet.ru/eng/ftt/v58/i8/p1552
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