{"title":"Phase Equilibrium and High-Temperature Mechanical Properties of Nb–Si–X Ternary Alloys","authors":"Sae Matsunaga, Kiyoshi Komamura, Yoko Yamabe-Mitarai","doi":"10.1007/s11661-023-07220-8","DOIUrl":null,"url":null,"abstract":"Abstract Phase equilibrium of Nb–Si–X ternary alloys (X = Zr, Ta, Al) was predicted by thermodynamic calculations. Microstructure characterization and phase identification have been performed to investigate the phase equilibrium and validate the prediction. High-temperature compression tests were performed to evaluate the mechanical properties. All alloys exhibited ssNb, Nb 5 Si 3 , and Nb 3 Si phases. Zr addition increased strength at both room and elevated temperatures. The alloy with large primary silicide islands exhibited a higher 0.2 pct proof stress.","PeriodicalId":49827,"journal":{"name":"Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science","volume":"37 1","pages":"0"},"PeriodicalIF":2.2000,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s11661-023-07220-8","RegionNum":3,"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
Abstract Phase equilibrium of Nb–Si–X ternary alloys (X = Zr, Ta, Al) was predicted by thermodynamic calculations. Microstructure characterization and phase identification have been performed to investigate the phase equilibrium and validate the prediction. High-temperature compression tests were performed to evaluate the mechanical properties. All alloys exhibited ssNb, Nb 5 Si 3 , and Nb 3 Si phases. Zr addition increased strength at both room and elevated temperatures. The alloy with large primary silicide islands exhibited a higher 0.2 pct proof stress.
期刊介绍：
Metallurgical and Materials Transactions A focuses on the latest research in all aspects of physical metallurgy and materials science. It explores relationships among processing, structure, and properties of materials; publishes critically reviewed, original research of archival significance.
The journal address the main topics of alloy phases; transformations; transport phenomena; mechanical behavior; physical chemistry; environment; welding & joining; surface treatment; electronic, magnetic & optical material; solidification; materials processing; composite materials; biomaterials; and light metals. MMTA publishes Technical Publications, Communications, Symposia, and more.
Published with ASM International, The Materials Information Society and The Minerals, Metals & Materials Society (TMS)
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