{"title":"Exploring Anisotropy in Zr-2.5%Nb Pressure Tube Material through Hardness Measurements: Role of Microstructure and Hydrogen Concentration","authors":"Arnomitra Chatterjee, R. N. Singh","doi":"10.1007/s11665-025-11744-y","DOIUrl":null,"url":null,"abstract":"<div><p>Zr-2.5Nb pressure tube material exhibits strong anisotropy in mechanical properties owing to its microstructure and texture. In this work, an effort has been made to delineate the contributions from both these factors in the overall anisotropy of the material by imparting suitable heat treatments. The hardness and Young’s modulus of as-received and heat-treated material were estimated along three orthogonal directions through nano-indentation and have been correlated with the materials microstructure and texture. Micro-hardness measurements have been carried out on pressure tube samples charged with different hydrogen concentrations to explore if the presence of hydrogen has any influence on the anisotropy of the material. The combined effect of hydrogen and heat treatment on anisotropy has also been investigated.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 19","pages":"21741 - 21754"},"PeriodicalIF":2.0000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-025-11744-y.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11665-025-11744-y","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Zr-2.5Nb pressure tube material exhibits strong anisotropy in mechanical properties owing to its microstructure and texture. In this work, an effort has been made to delineate the contributions from both these factors in the overall anisotropy of the material by imparting suitable heat treatments. The hardness and Young’s modulus of as-received and heat-treated material were estimated along three orthogonal directions through nano-indentation and have been correlated with the materials microstructure and texture. Micro-hardness measurements have been carried out on pressure tube samples charged with different hydrogen concentrations to explore if the presence of hydrogen has any influence on the anisotropy of the material. The combined effect of hydrogen and heat treatment on anisotropy has also been investigated.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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