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High temperature hardness of WC-Co-Ru

High temperature hardness of WC-Co-Ru JOURNAL OF MATERIALS SCIENCE L ETTERS 21, 2002, 1681 – 1682 S. LUYCKX School of Process and Materials Engineering, University of the Witwatersrand, Johannesburg 2050, South Africa Room temperature measurements have shown that ad- Fig. 2 summarizes the same results as Fig. 1 but ditions of Ru harden WC-Co significantly, at least at shows more immediately the variation in hardness with Ru/Co mass ratios higher than ∼0.15 [1]. However, increasing Ru content at the various temperatures. It since in practical applications WC-Co is usually ex- shows that up to 600 C Ru additions lead to increases posed to temperatures as high as 800–900 C (e.g., in in hardness which depend on Ru content, but above that metal cutting) it is important to establish if the harden- temperature the influence of Ru content is negligible. ing effect of Ru persists at high temperatures. It has been found by EDS analysis that in WC-Co-Ru The only data available on the high temperature hard- alloys Ru is in solution in the Co binder [1]. Therefore, ness of WC-Co-Ru are found in a patent [2], where the the hardening observed is due to the hardening of the data reported are from random grades, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Letters Springer Journals

High temperature hardness of WC-Co-Ru

Journal of Materials Science Letters , Volume 21 (21) – Oct 12, 2004

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References (2)

Publisher
Springer Journals
Copyright
Copyright © 2002 by Kluwer Academic Publishers
Subject
Materials Science; Characterization and Evaluation of Materials; Industrial Chemistry/Chemical Engineering; Polymer Sciences; Classical Mechanics
ISSN
0261-8028
eISSN
1573-4811
DOI
10.1023/A:1020828910540
Publisher site
See Article on Publisher Site

Abstract

JOURNAL OF MATERIALS SCIENCE L ETTERS 21, 2002, 1681 – 1682 S. LUYCKX School of Process and Materials Engineering, University of the Witwatersrand, Johannesburg 2050, South Africa Room temperature measurements have shown that ad- Fig. 2 summarizes the same results as Fig. 1 but ditions of Ru harden WC-Co significantly, at least at shows more immediately the variation in hardness with Ru/Co mass ratios higher than ∼0.15 [1]. However, increasing Ru content at the various temperatures. It since in practical applications WC-Co is usually ex- shows that up to 600 C Ru additions lead to increases posed to temperatures as high as 800–900 C (e.g., in in hardness which depend on Ru content, but above that metal cutting) it is important to establish if the harden- temperature the influence of Ru content is negligible. ing effect of Ru persists at high temperatures. It has been found by EDS analysis that in WC-Co-Ru The only data available on the high temperature hard- alloys Ru is in solution in the Co binder [1]. Therefore, ness of WC-Co-Ru are found in a patent [2], where the the hardening observed is due to the hardening of the data reported are from random grades,

Journal

Journal of Materials Science LettersSpringer Journals

Published: Oct 12, 2004

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