Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V
A wide range of post process hot isostatic pressing (HIP) studies of electron beam additively manufactured Ti-6Al-4V in this research program have shown that cooling rates of 103 °C/min from temperatures above and below the beta transus produced acicular alpha-prime martensite characteristic elongat...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420314204 |
| _version_ | 1818847106741305344 |
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| author | Ahmad Abu-Issa Miguel Lopez Christina Pickett Andres Escarcega Edel Arrieta Lawrence E. Murr Ryan B. Wicker Magnus Ahlfors Don Godfrey Francisco Medina |
| author_facet | Ahmad Abu-Issa Miguel Lopez Christina Pickett Andres Escarcega Edel Arrieta Lawrence E. Murr Ryan B. Wicker Magnus Ahlfors Don Godfrey Francisco Medina |
| author_sort | Ahmad Abu-Issa |
| collection | DOAJ |
| description | A wide range of post process hot isostatic pressing (HIP) studies of electron beam additively manufactured Ti-6Al-4V in this research program have shown that cooling rates of 103 °C/min from temperatures above and below the beta transus produced acicular alpha-prime martensite characteristic elongations < 10%. Optimum yield strength (0.9 GPa), UTS (1.0 GPa), and elongation (∼14%) were achieved for slow cooling (at 102 °C/min) from 850 °C HIP which produced a dense, Widmanstatten alpha structure within the retained, as-fabricated columnar grains by alpha-prime decomposition. These results suggest that manipulation of AM process parameters to produce a small-grain, equiaxed microstructure, HIPed below the beta transus and slow cooled, will have a wide range of superior, isotropic mechanical properties corresponding to a Widmanstatten alpha microstructure within the equiaxed grains. |
| first_indexed | 2024-12-19T05:56:11Z |
| format | Article |
| id | doaj.art-d9443a0216634479a381bf863dc0d772 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-19T05:56:11Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d9443a0216634479a381bf863dc0d7722022-12-21T20:33:27ZengElsevierJournal of Materials Research and Technology2238-78542020-07-019487358743Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4VAhmad Abu-Issa0Miguel Lopez1Christina Pickett2Andres Escarcega3Edel Arrieta4Lawrence E. Murr5Ryan B. Wicker6Magnus Ahlfors7Don Godfrey8Francisco Medina9Department of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USA; Corresponding author at: Department of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA.Department of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USAW.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USA; Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USADepartment of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USADepartment of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USAW.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USA; Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USADepartment of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USAQuintus Technologies, Lewis Center, OH 43035, USAHoneywell Aerospace, Phoenix, AZ 85034, USADepartment of Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA; W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968, USAA wide range of post process hot isostatic pressing (HIP) studies of electron beam additively manufactured Ti-6Al-4V in this research program have shown that cooling rates of 103 °C/min from temperatures above and below the beta transus produced acicular alpha-prime martensite characteristic elongations < 10%. Optimum yield strength (0.9 GPa), UTS (1.0 GPa), and elongation (∼14%) were achieved for slow cooling (at 102 °C/min) from 850 °C HIP which produced a dense, Widmanstatten alpha structure within the retained, as-fabricated columnar grains by alpha-prime decomposition. These results suggest that manipulation of AM process parameters to produce a small-grain, equiaxed microstructure, HIPed below the beta transus and slow cooled, will have a wide range of superior, isotropic mechanical properties corresponding to a Widmanstatten alpha microstructure within the equiaxed grains.http://www.sciencedirect.com/science/article/pii/S2238785420314204Additive manufacturingElectron beam additive manufacturing (EBAM)Ti-6Al-4V alloy (Ti64)Hot isostatic pressing (HIP)Cooling rateMicrostructure |
| spellingShingle | Ahmad Abu-Issa Miguel Lopez Christina Pickett Andres Escarcega Edel Arrieta Lawrence E. Murr Ryan B. Wicker Magnus Ahlfors Don Godfrey Francisco Medina Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V Journal of Materials Research and Technology Additive manufacturing Electron beam additive manufacturing (EBAM) Ti-6Al-4V alloy (Ti64) Hot isostatic pressing (HIP) Cooling rate Microstructure |
| title | Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V |
| title_full | Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V |
| title_fullStr | Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V |
| title_full_unstemmed | Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V |
| title_short | Effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted Ti-6Al-4V |
| title_sort | effects of altered hot isostatic pressing treatments on the microstructures and mechanical performance of electron beam melted ti 6al 4v |
| topic | Additive manufacturing Electron beam additive manufacturing (EBAM) Ti-6Al-4V alloy (Ti64) Hot isostatic pressing (HIP) Cooling rate Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420314204 |
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