Preparation of Cu-Cr alloy powder by mechanical alloying

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Qing Zhao, Zhongbao Shao, Chengjun Liu, Maofa Jiang, Xuetian Li, Ron Zevenhoven, Henrik Saxén
Förläggare: ELSEVIER SCIENCE SA
Publiceringsår: 2014
Tidskrift: Journal of Alloys and Compounds
Tidskriftsakronym: J ALLOY COMPD
Volym: 607
Artikelns första sida, sidnummer: 118
Artikelns sista sida, sidnummer: 124
Antal sidor: 7
ISSN: 0925-8388
eISSN: 1873-4669


Abstrakt

A study of Cu-Cr alloy powder preparation by a newly developed mechanical alloying (MA) approach was conducted using a modified mill. Results showed that the preparation temperature was much lower in the tests employing modified mill than with traditional equipment, and that no distinct differences could be found in the products prepared by the vibratory and planetary mills. Active carbon powder was found to exhibit an excellent reducing capacity for metallic oxides, while graphite powder was found inappropriate in this process. Based on the experimental results, purified Cu-Cr alloy nano-scale grain can prepared by mechanical alloying in the modified mill at 325 degrees C for 3 h with a ball-to-powder mass ratio of 15:1. A crystal agglomeration phenomenon was also found in the final alloy powder, leading to an increase in particle size.


Nyckelord

Cu-Cr, Mechanical alloying, Milling, Powder

Senast uppdaterad 2019-11-12 vid 02:35