{"title":"Mechanical properties of particle reinforced titanium and titanium alloys","authors":"C. Poletti, G. Holtl","doi":"10.4149/KM_2010_2_87","DOIUrl":null,"url":null,"abstract":"Titanium grade 2, Ti-6Al-4V and Ti-6Al-6V-2Sn unreinforced and reinforced with 10–15 vol.% SiC particles, 5 vol.% TiB whiskers and 12–20 vol.% TiC are characterized by compression tests, micro-, macro- and nano-hardness measurements, and X-ray diffraction. The measured Young’s moduli up to 350 ◦ C were found to be described using the Halpin Tsai model for the TiC and of TiB reinforced materials (aspect ratio of 1 and 100, respectively). The strengthening by SiC addition is attributed to matrix strain hardening due to the thermal misfit between the matrix and the reinforcement. The strengthening of TiC reinforced material is attributed to interstitial C dissolved in the alpha phase proved with the nanohardness results. TiB precipitates produce strengthening by grain refinement and dispersion hardening. The presence of 1 wt.% of C in the matrix also should be the reason for higher Young’s modulus and strengthening. K e y w o r d s : metal-matrix composites (MMCs), mechanical properties, deformation, elastic properties, powder metallurgy","PeriodicalId":49937,"journal":{"name":"Kovove Materialy-Metallic Materials","volume":"203 1","pages":"87-95"},"PeriodicalIF":0.7000,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kovove Materialy-Metallic Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.4149/KM_2010_2_87","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 4
Abstract
Titanium grade 2, Ti-6Al-4V and Ti-6Al-6V-2Sn unreinforced and reinforced with 10–15 vol.% SiC particles, 5 vol.% TiB whiskers and 12–20 vol.% TiC are characterized by compression tests, micro-, macro- and nano-hardness measurements, and X-ray diffraction. The measured Young’s moduli up to 350 ◦ C were found to be described using the Halpin Tsai model for the TiC and of TiB reinforced materials (aspect ratio of 1 and 100, respectively). The strengthening by SiC addition is attributed to matrix strain hardening due to the thermal misfit between the matrix and the reinforcement. The strengthening of TiC reinforced material is attributed to interstitial C dissolved in the alpha phase proved with the nanohardness results. TiB precipitates produce strengthening by grain refinement and dispersion hardening. The presence of 1 wt.% of C in the matrix also should be the reason for higher Young’s modulus and strengthening. K e y w o r d s : metal-matrix composites (MMCs), mechanical properties, deformation, elastic properties, powder metallurgy
期刊介绍：
Kovove Materialy - Metallic Materials is dedicated to publishing original theoretical and experimental papers concerned with structural, nanostructured, and functional metallic and selected non-metallic materials. Emphasis is placed on those aspects of the science of materials that address:
the relationship between the microstructure of materials and their properties, including mechanical, electrical, magnetic and chemical properties;
the relationship between the microstructure of materials and the thermodynamics, kinetics and mechanisms of processes;
the synthesis and processing of materials, with emphasis on microstructural mechanisms and control;
advances in the characterization of the microstructure and properties of materials with experiments and models which help in understanding the properties of materials.
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