Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites

Despite the tremendous application potential of SiCp/Al composites, their use has been restricted by poor weldability. To investigate the effect of Ti addition on the laser weld quality of SiCp/Al composite materials, pure titanium foil with a thickness of 0–300 μm was used as the interlayer to join...

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Autores principales:	Zhijia Hua, Chunming Wang, Gaoyang Mi, Ping Jiang, Lingda Xiong
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Laser welding SiCp/al composites Microstructures Ti Mechanical properties Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/40f4ee7e57c74b99960f4e1142fb7308
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spelling	oai:doaj.org-article:40f4ee7e57c74b99960f4e1142fb73082021-12-02T05:01:46ZEffects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites2238-785410.1016/j.jmrt.2021.11.017https://doaj.org/article/40f4ee7e57c74b99960f4e1142fb73082021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012965https://doaj.org/toc/2238-7854Despite the tremendous application potential of SiCp/Al composites, their use has been restricted by poor weldability. To investigate the effect of Ti addition on the laser weld quality of SiCp/Al composite materials, pure titanium foil with a thickness of 0–300 μm was used as the interlayer to join the SiCp/Al composite material by laser welding. The forming morphology, phase identification, microstructure evolution and mechanical properties of weld joints with different Ti addition were analyzed systematically. The results showed that the addition of Ti effectively inhibited the growth of Al4C3 and generated a new TiC reinforcing phase. When the thickness of Ti foil exceeded 200 μm, the flaky Al4C3 phase in the weld was replaced by TiC particles with the size of less than 5 μm, enhancing the fluidity of the melt in the molten pool and thus improving weld formation. The tensile strength of the joint increased from 156.2 MPa to 311.1 MPa due to the improved weld forming quality and the dispersion hardening effect caused by the TiC particles. Addition of 300-μm-thick Ti produced large Al3Ti sheets that reduced the tensile strength of the joint. These results elucidate the mechanism of the forming morphology, microstructure evolution, and joint strengthening of the SiCp/Al composite weld joint with Ti content change, and provide theoretical guidance for selecting the appropriate Ti addition for laser welding of SiCp/Al composites.Zhijia HuaChunming WangGaoyang MiPing JiangLingda XiongElsevierarticleLaser weldingSiCp/al compositesMicrostructuresTiMechanical propertiesMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6272-6286 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Laser welding SiCp/al composites Microstructures Ti Mechanical properties Mining engineering. Metallurgy TN1-997
spellingShingle	Laser welding SiCp/al composites Microstructures Ti Mechanical properties Mining engineering. Metallurgy TN1-997 Zhijia Hua Chunming Wang Gaoyang Mi Ping Jiang Lingda Xiong Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
description	Despite the tremendous application potential of SiCp/Al composites, their use has been restricted by poor weldability. To investigate the effect of Ti addition on the laser weld quality of SiCp/Al composite materials, pure titanium foil with a thickness of 0–300 μm was used as the interlayer to join the SiCp/Al composite material by laser welding. The forming morphology, phase identification, microstructure evolution and mechanical properties of weld joints with different Ti addition were analyzed systematically. The results showed that the addition of Ti effectively inhibited the growth of Al4C3 and generated a new TiC reinforcing phase. When the thickness of Ti foil exceeded 200 μm, the flaky Al4C3 phase in the weld was replaced by TiC particles with the size of less than 5 μm, enhancing the fluidity of the melt in the molten pool and thus improving weld formation. The tensile strength of the joint increased from 156.2 MPa to 311.1 MPa due to the improved weld forming quality and the dispersion hardening effect caused by the TiC particles. Addition of 300-μm-thick Ti produced large Al3Ti sheets that reduced the tensile strength of the joint. These results elucidate the mechanism of the forming morphology, microstructure evolution, and joint strengthening of the SiCp/Al composite weld joint with Ti content change, and provide theoretical guidance for selecting the appropriate Ti addition for laser welding of SiCp/Al composites.
format	article
author	Zhijia Hua Chunming Wang Gaoyang Mi Ping Jiang Lingda Xiong
author_facet	Zhijia Hua Chunming Wang Gaoyang Mi Ping Jiang Lingda Xiong
author_sort	Zhijia Hua
title	Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
title_short	Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
title_full	Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
title_fullStr	Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
title_full_unstemmed	Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites
title_sort	effects of ti on the forming, microstructure and mechanical properties of laser welded joints of sicp/2a14 composites
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/40f4ee7e57c74b99960f4e1142fb7308
work_keys_str_mv	AT zhijiahua effectsoftiontheformingmicrostructureandmechanicalpropertiesoflaserweldedjointsofsicp2a14composites AT chunmingwang effectsoftiontheformingmicrostructureandmechanicalpropertiesoflaserweldedjointsofsicp2a14composites AT gaoyangmi effectsoftiontheformingmicrostructureandmechanicalpropertiesoflaserweldedjointsofsicp2a14composites AT pingjiang effectsoftiontheformingmicrostructureandmechanicalpropertiesoflaserweldedjointsofsicp2a14composites AT lingdaxiong effectsoftiontheformingmicrostructureandmechanicalpropertiesoflaserweldedjointsofsicp2a14composites
_version_	1718400763422572544

Effects of Ti on the forming, microstructure and mechanical properties of laser welded joints of SiCp/2A14 composites

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