Characterization of copper & stainless steel interface produced by electron beam powder bed fusion

Unalloyed copper (Cu) powder was deposited and melted onto a pre-existing stainless steel substrate using electron beam powder bed fusion (EB-PBF) additive manufacturing (AM) to form dense, bimetallic structures. The AM fabricated Cu was fully dense, and with strength properties consistent with rece...

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Autores principales:	Christopher Rock, Prithwish Tarafder, Lawrence Ives, Timothy Horn
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Additive manufacturing Cu Bimetallic Miscibility gap Liquid phase separation Interface Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/0b875ed17dc04c8c976bbcf36250c09d
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spelling	oai:doaj.org-article:0b875ed17dc04c8c976bbcf36250c09d2021-12-04T04:32:18ZCharacterization of copper & stainless steel interface produced by electron beam powder bed fusion0264-127510.1016/j.matdes.2021.110278https://doaj.org/article/0b875ed17dc04c8c976bbcf36250c09d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008339https://doaj.org/toc/0264-1275Unalloyed copper (Cu) powder was deposited and melted onto a pre-existing stainless steel substrate using electron beam powder bed fusion (EB-PBF) additive manufacturing (AM) to form dense, bimetallic structures. The AM fabricated Cu was fully dense, and with strength properties consistent with recent reports on EB-PBF of Cu. The overall bimetallic structures exhibited total elongation of 25–35%, and was dominated by plastic deformation in the Cu region. Tensile failures were typically observed in the Cu portion of the bimetallic bodies demonstrating that the interface was not the source of mechanical failure. The interface region of the bimetallics contained areas of liquid phase separated Cu and Iron (Fe) + Chromium (Cr) rich regions resulting from a metastable miscibility gap in the Cu and Fe phase diagram. Metallurgical and mechanical examinations of the bimetallic structures showed the interface region transitions from an Fe rich mixture to a Cu rich mixture within a few AM layers.Christopher RockPrithwish TarafderLawrence IvesTimothy HornElsevierarticleAdditive manufacturingCuBimetallicMiscibility gapLiquid phase separationInterfaceMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110278- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Additive manufacturing Cu Bimetallic Miscibility gap Liquid phase separation Interface Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Additive manufacturing Cu Bimetallic Miscibility gap Liquid phase separation Interface Materials of engineering and construction. Mechanics of materials TA401-492 Christopher Rock Prithwish Tarafder Lawrence Ives Timothy Horn Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
description	Unalloyed copper (Cu) powder was deposited and melted onto a pre-existing stainless steel substrate using electron beam powder bed fusion (EB-PBF) additive manufacturing (AM) to form dense, bimetallic structures. The AM fabricated Cu was fully dense, and with strength properties consistent with recent reports on EB-PBF of Cu. The overall bimetallic structures exhibited total elongation of 25–35%, and was dominated by plastic deformation in the Cu region. Tensile failures were typically observed in the Cu portion of the bimetallic bodies demonstrating that the interface was not the source of mechanical failure. The interface region of the bimetallics contained areas of liquid phase separated Cu and Iron (Fe) + Chromium (Cr) rich regions resulting from a metastable miscibility gap in the Cu and Fe phase diagram. Metallurgical and mechanical examinations of the bimetallic structures showed the interface region transitions from an Fe rich mixture to a Cu rich mixture within a few AM layers.
format	article
author	Christopher Rock Prithwish Tarafder Lawrence Ives Timothy Horn
author_facet	Christopher Rock Prithwish Tarafder Lawrence Ives Timothy Horn
author_sort	Christopher Rock
title	Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
title_short	Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
title_full	Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
title_fullStr	Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
title_full_unstemmed	Characterization of copper & stainless steel interface produced by electron beam powder bed fusion
title_sort	characterization of copper & stainless steel interface produced by electron beam powder bed fusion
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0b875ed17dc04c8c976bbcf36250c09d
work_keys_str_mv	AT christopherrock characterizationofcopperampstainlesssteelinterfaceproducedbyelectronbeampowderbedfusion AT prithwishtarafder characterizationofcopperampstainlesssteelinterfaceproducedbyelectronbeampowderbedfusion AT lawrenceives characterizationofcopperampstainlesssteelinterfaceproducedbyelectronbeampowderbedfusion AT timothyhorn characterizationofcopperampstainlesssteelinterfaceproducedbyelectronbeampowderbedfusion
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Characterization of copper &amp; stainless steel interface produced by electron beam powder bed fusion

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Characterization of copper & stainless steel interface produced by electron beam powder bed fusion