Open this publication in new window or tab >>Show others...
2020 (English)In: Additive Manufacturing, ISSN 2214-8604, E-ISSN 2214-7810, Vol. 33, article id 101124Article in journal (Refereed) Published
Abstract [en]
Parameters for selective laser melting of Zr59.3Cu28.8Al10.4Nb1.5 (trade name AMZ4), allowing crack-free bulk metallic glass with low porosity, have been developed. The phase formation was found to be strongly influenced by the heating power of the laser. X-ray amorphous samples were obtained with laser power at and below 75 W. The as-processed bulk metallic glass was found to devitrify by a two-stage crystallization process within which the presence of oxygen was concluded to play an essential role. At laser powers above 75 W, the observed crystallites were found to be a cubic phase (Cu2Zr4O). The hardness and Young’s modulus in the as-processed samples was found to increase marginally with increased fraction of the crystalline phase.
Keywords
Selective laser melting, AMZ4, Bulk metallic glass
National Category
Manufacturing, Surface and Joining Technology
Identifiers
urn:nbn:se:uu:diva-409729 (URN)10.1016/j.addma.2020.101124 (DOI)000539269900006 ()
Funder
Swedish Foundation for Strategic Research , GMT14-0048Swedish Foundation for Strategic Research
2020-04-272020-04-272021-09-08Bibliographically approved