Exploring an alloy space in a new generation γ-TiAl system Ti–xAl–yNb–1Cr–1Mo–0.2C–0.2B (at.%)): Aspects of phase transformation, microstructure and texture
{"title":"Exploring an alloy space in a new generation γ-TiAl system Ti–xAl–yNb–1Cr–1Mo–0.2C–0.2B (at.%)): Aspects of phase transformation, microstructure and texture","authors":"","doi":"10.1016/j.matchar.2024.114332","DOIUrl":null,"url":null,"abstract":"<div><p>The compositional sensitivity of phase transformation and resulting microstructure and texture has been systematically studied for a new generation γ-TiAl-based intermetallic system (Ti, Al, Nb, Cr, Mo, C, B). Systematic increase of Al and decrease of Nb content in this complex multi-component system revealed that the solidification path varied in the sequence of β solidification, hypo-peritectic solidification, hyper-peritectic solidification, and α solidification, consequently resulting in very different cast microstructure, texture, and elemental segregation. The alloy system involves multitudes of solid-state phase transformations, which are very sensitive to compositional variation, resulting in varieties of microstructural and crystallographic characteristics.</p></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Characterization","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1044580324007137","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
引用次数: 0
Abstract
The compositional sensitivity of phase transformation and resulting microstructure and texture has been systematically studied for a new generation γ-TiAl-based intermetallic system (Ti, Al, Nb, Cr, Mo, C, B). Systematic increase of Al and decrease of Nb content in this complex multi-component system revealed that the solidification path varied in the sequence of β solidification, hypo-peritectic solidification, hyper-peritectic solidification, and α solidification, consequently resulting in very different cast microstructure, texture, and elemental segregation. The alloy system involves multitudes of solid-state phase transformations, which are very sensitive to compositional variation, resulting in varieties of microstructural and crystallographic characteristics.
期刊介绍:
Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials.
The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal.
The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include:
Metals & Alloys
Ceramics
Nanomaterials
Biomedical materials
Optical materials
Composites
Natural Materials.