Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain

Four novel superelastic alloys, Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, Ti-44Zr-10Nb (at.%), were obtained and studied in terms of their microstructure and mechanical properties. The obtained alloys were subjected to thermomechanical treatment, providing alloys with a pronounced superelastic behav...

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Main Authors: Danil Barilyuk, Andrey Bazlov, Natalia Arkharova, Tatyana Teplyakova, Anton Konopatsky, Sergey Prokoshkin
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/2/185
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author Danil Barilyuk
Andrey Bazlov
Natalia Arkharova
Tatyana Teplyakova
Anton Konopatsky
Sergey Prokoshkin
author_facet Danil Barilyuk
Andrey Bazlov
Natalia Arkharova
Tatyana Teplyakova
Anton Konopatsky
Sergey Prokoshkin
author_sort Danil Barilyuk
collection DOAJ
description Four novel superelastic alloys, Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, Ti-44Zr-10Nb (at.%), were obtained and studied in terms of their microstructure and mechanical properties. The obtained alloys were subjected to thermomechanical treatment, providing alloys with a pronounced superelastic behavior. Materials phase composition and microstructure were studied using XRD and SEM methods. Based on the XRD results, maximum lattice strains in the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mfenced close="]" open="["><mrow><mn>011</mn></mrow></mfenced></mrow><mi>β</mi></msub></mrow></semantics></math></inline-formula> direction were calculated as 5.9%, 6.3%, 7.5%, and 7.2% for Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Mechanical properties of the thermomechanically-treated alloys were studied by Vickers microhardness testing, static tensile testing, and superelastic mechanical cycling. The maximum superelastic recovery strains attained at room temperature was 3.7%, 1.9%, 3.2%, and 3.0% for the Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Ti-41Zr-12Nb alloy demonstrated the highest ductility, with relative elongation to failure of over 20%, combined with the total recovery strain of more than 6%. Obtained results indicate that Ti-41Zr-12Nb is one the most promising alloys of the Ti-Zr-Nb system, with quite perfect superelastic behavior at room temperature.
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spelling doaj.art-849e539347764302a50775dbdb50aaf62023-11-23T21:06:18ZengMDPI AGMetals2075-47012022-01-0112218510.3390/met12020185Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery StrainDanil Barilyuk0Andrey Bazlov1Natalia Arkharova2Tatyana Teplyakova3Anton Konopatsky4Sergey Prokoshkin5National University of Science and Technology “MISIS”, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, 119049 Moscow, RussiaA.V. Shubnikov Institute of Crystallography, FSRC “Crystallography and Photonics” RAS, 119333 Moscow, RussiaNational University of Science and Technology “MISIS”, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, 119049 Moscow, RussiaFour novel superelastic alloys, Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, Ti-44Zr-10Nb (at.%), were obtained and studied in terms of their microstructure and mechanical properties. The obtained alloys were subjected to thermomechanical treatment, providing alloys with a pronounced superelastic behavior. Materials phase composition and microstructure were studied using XRD and SEM methods. Based on the XRD results, maximum lattice strains in the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mfenced close="]" open="["><mrow><mn>011</mn></mrow></mfenced></mrow><mi>β</mi></msub></mrow></semantics></math></inline-formula> direction were calculated as 5.9%, 6.3%, 7.5%, and 7.2% for Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Mechanical properties of the thermomechanically-treated alloys were studied by Vickers microhardness testing, static tensile testing, and superelastic mechanical cycling. The maximum superelastic recovery strains attained at room temperature was 3.7%, 1.9%, 3.2%, and 3.0% for the Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Ti-41Zr-12Nb alloy demonstrated the highest ductility, with relative elongation to failure of over 20%, combined with the total recovery strain of more than 6%. Obtained results indicate that Ti-41Zr-12Nb is one the most promising alloys of the Ti-Zr-Nb system, with quite perfect superelastic behavior at room temperature.https://www.mdpi.com/2075-4701/12/2/185materials sciencetitanium alloyssuperelasticitybiocompatibility
spellingShingle Danil Barilyuk
Andrey Bazlov
Natalia Arkharova
Tatyana Teplyakova
Anton Konopatsky
Sergey Prokoshkin
Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
Metals
materials science
titanium alloys
superelasticity
biocompatibility
title Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
title_full Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
title_fullStr Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
title_full_unstemmed Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
title_short Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain
title_sort novel zr rich alloys of ternary ti zr nb system with large superelastic recovery strain
topic materials science
titanium alloys
superelasticity
biocompatibility
url https://www.mdpi.com/2075-4701/12/2/185
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AT andreybazlov novelzrrichalloysofternarytizrnbsystemwithlargesuperelasticrecoverystrain
AT nataliaarkharova novelzrrichalloysofternarytizrnbsystemwithlargesuperelasticrecoverystrain
AT tatyanateplyakova novelzrrichalloysofternarytizrnbsystemwithlargesuperelasticrecoverystrain
AT antonkonopatsky novelzrrichalloysofternarytizrnbsystemwithlargesuperelasticrecoverystrain
AT sergeyprokoshkin novelzrrichalloysofternarytizrnbsystemwithlargesuperelasticrecoverystrain