Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation

Gradient materials can achieve both external strengthening and internal toughening, which has great potential to break the strong plastic tradeoff. Titanium carbide (TiC) particle is conducive to form a wearable surface in biomedical Titanium (Ti) alloy. In this work, gradient TiC/Ti6Al4V composites...

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Autores principales:	Yingchen Wang, Hongyuan Shi, Peng Zhou, Yujin Tang, Jia Liu, Liqiang Wang, Jie Li, Yuanfei Fu, Weijie Lu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Friction stir processing Ti6Al4V TiC particle Microstructure evolution Mechanical property Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/6b92f54891154367b469d3b93cc9eba8
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spelling	oai:doaj.org-article:6b92f54891154367b469d3b93cc9eba82021-12-04T04:34:32ZMicrostructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation2238-785410.1016/j.jmrt.2021.11.090https://doaj.org/article/6b92f54891154367b469d3b93cc9eba82021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013715https://doaj.org/toc/2238-7854Gradient materials can achieve both external strengthening and internal toughening, which has great potential to break the strong plastic tradeoff. Titanium carbide (TiC) particle is conducive to form a wearable surface in biomedical Titanium (Ti) alloy. In this work, gradient TiC/Ti6Al4V composites were successfully prepared by friction stir processing (FSP). Microstructure, texture and mechanical properties of the material were systematically characterized. Scanning electron microscopy (SEM) showed that the equiaxed grains near the machined surface were transformed into elongated grains inside. The results of energy spectrum analysis (EDS) showed that there was element aggregation near TiC particles. X-ray diffraction (XRD) indicated martensitic transformation in the stir zone and in the transition zone. The results of nano indentation showed that the hardness of stir zone was higher. In order to promote recrystallization and improve the hardness of the transition zone, high temperature rapid heat treatment was carried out after FSP. When the sample was heated at 700 °C and cooled in the furnace, the hardness increased to the maximum. In the process of rapid heating, the dissolution of elements near TiC particles also led to the increase of hardness. This study provides a new idea for surface modification of gradient titanium alloy by using FSP method to improve its mechanical properties.Yingchen WangHongyuan ShiPeng ZhouYujin TangJia LiuLiqiang WangJie LiYuanfei FuWeijie LuElsevierarticleFriction stir processingTi6Al4VTiC particleMicrostructure evolutionMechanical propertyMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6442-6452 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Friction stir processing Ti6Al4V TiC particle Microstructure evolution Mechanical property Mining engineering. Metallurgy TN1-997
spellingShingle	Friction stir processing Ti6Al4V TiC particle Microstructure evolution Mechanical property Mining engineering. Metallurgy TN1-997 Yingchen Wang Hongyuan Shi Peng Zhou Yujin Tang Jia Liu Liqiang Wang Jie Li Yuanfei Fu Weijie Lu Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
description	Gradient materials can achieve both external strengthening and internal toughening, which has great potential to break the strong plastic tradeoff. Titanium carbide (TiC) particle is conducive to form a wearable surface in biomedical Titanium (Ti) alloy. In this work, gradient TiC/Ti6Al4V composites were successfully prepared by friction stir processing (FSP). Microstructure, texture and mechanical properties of the material were systematically characterized. Scanning electron microscopy (SEM) showed that the equiaxed grains near the machined surface were transformed into elongated grains inside. The results of energy spectrum analysis (EDS) showed that there was element aggregation near TiC particles. X-ray diffraction (XRD) indicated martensitic transformation in the stir zone and in the transition zone. The results of nano indentation showed that the hardness of stir zone was higher. In order to promote recrystallization and improve the hardness of the transition zone, high temperature rapid heat treatment was carried out after FSP. When the sample was heated at 700 °C and cooled in the furnace, the hardness increased to the maximum. In the process of rapid heating, the dissolution of elements near TiC particles also led to the increase of hardness. This study provides a new idea for surface modification of gradient titanium alloy by using FSP method to improve its mechanical properties.
format	article
author	Yingchen Wang Hongyuan Shi Peng Zhou Yujin Tang Jia Liu Liqiang Wang Jie Li Yuanfei Fu Weijie Lu
author_facet	Yingchen Wang Hongyuan Shi Peng Zhou Yujin Tang Jia Liu Liqiang Wang Jie Li Yuanfei Fu Weijie Lu
author_sort	Yingchen Wang
title	Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
title_short	Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
title_full	Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
title_fullStr	Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
title_full_unstemmed	Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation
title_sort	microstructure evolution and mechanical properties of tic/ti6al4v medical composite processed by severe plastic deformation
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/6b92f54891154367b469d3b93cc9eba8
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_version_	1718372972722388992

Microstructure evolution and mechanical properties of TiC/Ti6Al4V medical composite processed by severe plastic deformation

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