Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition

Effects of electroshock treatment (EST) on the microstructural evolution and mechanical properties of near-β titanium alloy (Ti-55531) formed by directed energy deposition (DED) was studied in this work. With the increase in EST time, the average hardness of specimen decreased from 426 HV to 316 HV,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Haojie Guo, Pu Liu, Xunpeng Qin, Yanli Song, Dongsheng Qian, Lechun Xie, Liqiang Wang, Lai-Chang Zhang, Lin Hua
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Electroshock treatment (EST) Directed energy deposition (DED) Near-β titanium alloy Microstructure Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/701a1038bb9843ff85f0656b96094564
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:701a1038bb9843ff85f0656b96094564
record_format	dspace
spelling	oai:doaj.org-article:701a1038bb9843ff85f0656b960945642021-11-30T04:13:37ZElectroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition0264-127510.1016/j.matdes.2021.110286https://doaj.org/article/701a1038bb9843ff85f0656b960945642021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008418https://doaj.org/toc/0264-1275Effects of electroshock treatment (EST) on the microstructural evolution and mechanical properties of near-β titanium alloy (Ti-55531) formed by directed energy deposition (DED) was studied in this work. With the increase in EST time, the average hardness of specimen decreased from 426 HV to 316 HV, and the fracture strain increased significantly, which was attributed to the uniform dispersion of α phase along grain boundaries and inside the β grains. After EST, the texture intensity decreased in terms of the orientation distribution function (ODF), which was ascribed to the redistribution of α phase. Moreover, more atomic vacancies and lattice distortion were formed near the α/β interfaces, which were verified by transmission electron microscopy (TEM) observation and ascribed to the migration of atoms near the interface under EST. External loadings facilitated the dislocation motion and lattice distortions near the interfaces, which resulted in the reduction in hardness and the improvement in ductility. The above results indicated that EST can quickly alter the microstructure and mechanical properties of DED titanium alloys as a simple and energy-saving method.Haojie GuoPu LiuXunpeng QinYanli SongDongsheng QianLechun XieLiqiang WangLai-Chang ZhangLin HuaElsevierarticleElectroshock treatment (EST)Directed energy deposition (DED)Near-β titanium alloyMicrostructureMechanical propertiesMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110286- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electroshock treatment (EST) Directed energy deposition (DED) Near-β titanium alloy Microstructure Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Electroshock treatment (EST) Directed energy deposition (DED) Near-β titanium alloy Microstructure Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492 Haojie Guo Pu Liu Xunpeng Qin Yanli Song Dongsheng Qian Lechun Xie Liqiang Wang Lai-Chang Zhang Lin Hua Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
description	Effects of electroshock treatment (EST) on the microstructural evolution and mechanical properties of near-β titanium alloy (Ti-55531) formed by directed energy deposition (DED) was studied in this work. With the increase in EST time, the average hardness of specimen decreased from 426 HV to 316 HV, and the fracture strain increased significantly, which was attributed to the uniform dispersion of α phase along grain boundaries and inside the β grains. After EST, the texture intensity decreased in terms of the orientation distribution function (ODF), which was ascribed to the redistribution of α phase. Moreover, more atomic vacancies and lattice distortion were formed near the α/β interfaces, which were verified by transmission electron microscopy (TEM) observation and ascribed to the migration of atoms near the interface under EST. External loadings facilitated the dislocation motion and lattice distortions near the interfaces, which resulted in the reduction in hardness and the improvement in ductility. The above results indicated that EST can quickly alter the microstructure and mechanical properties of DED titanium alloys as a simple and energy-saving method.
format	article
author	Haojie Guo Pu Liu Xunpeng Qin Yanli Song Dongsheng Qian Lechun Xie Liqiang Wang Lai-Chang Zhang Lin Hua
author_facet	Haojie Guo Pu Liu Xunpeng Qin Yanli Song Dongsheng Qian Lechun Xie Liqiang Wang Lai-Chang Zhang Lin Hua
author_sort	Haojie Guo
title	Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
title_short	Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
title_full	Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
title_fullStr	Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
title_full_unstemmed	Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
title_sort	electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/701a1038bb9843ff85f0656b96094564
work_keys_str_mv	AT haojieguo electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT puliu electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT xunpengqin electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT yanlisong electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT dongshengqian electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT lechunxie electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT liqiangwang electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT laichangzhang electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition AT linhua electroshocktreatmentdependentmicrostructuralevolutionandmechanicalpropertiesofnearbtitaniumalloymanufacturedbydirectedenergydeposition
_version_	1718406869703196672

Electroshock treatment dependent microstructural evolution and mechanical properties of near-β titanium alloy manufactured by directed energy deposition

Ejemplares similares