From powders to bulk metallic glass composites

Abstract One way to adjust the properties of materials is by changing its microstructure. This concept is not easily applicable on bulk metallic glasses (BMGs), because they do not consist of grains or different phases and so their microstructure is very homogeneous. One obvious way to integrate inh...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lisa Krämer, Yannick Champion, Reinhard Pippan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/78173f27fdd24559839f4a663bc4c5f6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:78173f27fdd24559839f4a663bc4c5f6
record_format	dspace
spelling	oai:doaj.org-article:78173f27fdd24559839f4a663bc4c5f62021-12-02T15:05:16ZFrom powders to bulk metallic glass composites10.1038/s41598-017-06424-42045-2322https://doaj.org/article/78173f27fdd24559839f4a663bc4c5f62017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06424-4https://doaj.org/toc/2045-2322Abstract One way to adjust the properties of materials is by changing its microstructure. This concept is not easily applicable on bulk metallic glasses (BMGs), because they do not consist of grains or different phases and so their microstructure is very homogeneous. One obvious way to integrate inhomogeneities is to produce bulk metallic glass composites (BMGCs). Here we show how to generate BMGCs via high-pressure torsion (HPT) starting from powders (amorphous Zr-MG and crystalline Cu). Using this approach, the composition can be varied and by changing the applied shear strains, the refinement of the microstructure is adjustable. This process permits to produce amorphous/crystalline composites where the scale of the phases can be varied from the micro- to the nanometer regime. Even mixing of the two phases and the generation of new metallic glasses can be achieved. The refinement of microstructure increases the hardness and a hardness higher than the initial BMG can be obtained.Lisa KrämerYannick ChampionReinhard PippanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lisa Krämer Yannick Champion Reinhard Pippan From powders to bulk metallic glass composites
description	Abstract One way to adjust the properties of materials is by changing its microstructure. This concept is not easily applicable on bulk metallic glasses (BMGs), because they do not consist of grains or different phases and so their microstructure is very homogeneous. One obvious way to integrate inhomogeneities is to produce bulk metallic glass composites (BMGCs). Here we show how to generate BMGCs via high-pressure torsion (HPT) starting from powders (amorphous Zr-MG and crystalline Cu). Using this approach, the composition can be varied and by changing the applied shear strains, the refinement of the microstructure is adjustable. This process permits to produce amorphous/crystalline composites where the scale of the phases can be varied from the micro- to the nanometer regime. Even mixing of the two phases and the generation of new metallic glasses can be achieved. The refinement of microstructure increases the hardness and a hardness higher than the initial BMG can be obtained.
format	article
author	Lisa Krämer Yannick Champion Reinhard Pippan
author_facet	Lisa Krämer Yannick Champion Reinhard Pippan
author_sort	Lisa Krämer
title	From powders to bulk metallic glass composites
title_short	From powders to bulk metallic glass composites
title_full	From powders to bulk metallic glass composites
title_fullStr	From powders to bulk metallic glass composites
title_full_unstemmed	From powders to bulk metallic glass composites
title_sort	from powders to bulk metallic glass composites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/78173f27fdd24559839f4a663bc4c5f6
work_keys_str_mv	AT lisakramer frompowderstobulkmetallicglasscomposites AT yannickchampion frompowderstobulkmetallicglasscomposites AT reinhardpippan frompowderstobulkmetallicglasscomposites
_version_	1718388898019672064

From powders to bulk metallic glass composites

Ejemplares similares