{"title":"Texture control in new biomedical Nb30Ti30Zr30Cr5Mo5 medium entropy alloy through high temperature uniaxial compression for Young's modulus reduction","authors":"Pramote Thirathipviwat , Ryota Muraki , Wakaba Onuki , Daichi Minami , Jithin Vishnu , Ansheed Raheem , Kesavan Praveenkumar , Geetha Manivasagam , Equo Kobayashi , Makoto Hasegawa","doi":"10.1016/j.intermet.2025.109062","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we investigate the potential of texture control for preferred {001} orientation to reduce the Young's modulus in the new biomedical body-centered cubic (BCC) Nb<sub>30</sub>Ti<sub>30</sub>Zr<sub>30</sub>Cr<sub>5</sub>Mo<sub>5</sub> MEA. The fabrication of {001} oriented grains on a compression plane is controlled by so-called preferential dynamic grain growth under high temperature uniaxial compression. The uniaxial compression is carried out at temperature between 1073 and 1473 K by a true strain rate between 1 × 10<sup>−4</sup> – 1 × 10<sup>−2</sup> s<sup>−1</sup> until −1.0 in true strain. The microstructures after the compression at 1473 K are significantly developed by dynamic recrystallization. A decrease in true strain rate promotes a formation of {001} oriented grains due to enhanced preferential dynamic grain growth. The highest volume fraction of {001} texture (∼64 %) is observed after the compression at 1473 K under the strain rate of 5.0 × 10<sup>−4</sup> s<sup>−1</sup>. An increase in volume fraction of {001} texture decrease the Young's modulus. The Young's modulus in this study can reduce as low as 68 GPa, compared with ∼93 GPa in the initial sample prior to high-temperature deformation.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"188 ","pages":"Article 109062"},"PeriodicalIF":5.3000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Intermetallics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0966979525004273","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/11/3 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, we investigate the potential of texture control for preferred {001} orientation to reduce the Young's modulus in the new biomedical body-centered cubic (BCC) Nb30Ti30Zr30Cr5Mo5 MEA. The fabrication of {001} oriented grains on a compression plane is controlled by so-called preferential dynamic grain growth under high temperature uniaxial compression. The uniaxial compression is carried out at temperature between 1073 and 1473 K by a true strain rate between 1 × 10−4 – 1 × 10−2 s−1 until −1.0 in true strain. The microstructures after the compression at 1473 K are significantly developed by dynamic recrystallization. A decrease in true strain rate promotes a formation of {001} oriented grains due to enhanced preferential dynamic grain growth. The highest volume fraction of {001} texture (∼64 %) is observed after the compression at 1473 K under the strain rate of 5.0 × 10−4 s−1. An increase in volume fraction of {001} texture decrease the Young's modulus. The Young's modulus in this study can reduce as low as 68 GPa, compared with ∼93 GPa in the initial sample prior to high-temperature deformation.
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