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Metastable austenite and mixed carbides in WC-Fe/Ni/Cr/Mo cemented carbide composites

Toller-Nordström, L. R.M. ; Sten, S. ; Borgh, I. ; Norgren, S. M. LU and Borgenstam, A. (2026) In International Journal of Refractory Metals and Hard Materials 140.
Abstract

This work investigates how austenite stability and phase composition varies across multiple carbon contents for a cemented carbide with a steel binder alloyed with nickel, chromium and molybdenum. The results are compared with predictions done by thermodynamic calculations and property models designed to predict the austenite stability for steel. It is found that it is possible to predict the martensite fraction in the metallic binder with reasonable accuracy. Phase identification by electron diffraction showed that mixed carbides of the form M23C6 and M7[jls-end-space/]C3 can be found in the microstructure and that these are enriched in chromium and depleted in nickel.

Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Austenite, Cemented carbide, EBSD, MC, Martensite, Selected area diffraction, TEM
in
International Journal of Refractory Metals and Hard Materials
volume
140
article number
107865
publisher
Elsevier
external identifiers
  • scopus:105039082798
ISSN
0263-4368
DOI
10.1016/j.ijrmhm.2026.107865
language
English
LU publication?
yes
id
2f1cad22-4059-4b05-9d48-02f0c38d9825
date added to LUP
2026-08-11 14:02:06
date last changed
2026-08-11 14:02:52
@article{2f1cad22-4059-4b05-9d48-02f0c38d9825,
  abstract     = {{<p>This work investigates how austenite stability and phase composition varies across multiple carbon contents for a cemented carbide with a steel binder alloyed with nickel, chromium and molybdenum. The results are compared with predictions done by thermodynamic calculations and property models designed to predict the austenite stability for steel. It is found that it is possible to predict the martensite fraction in the metallic binder with reasonable accuracy. Phase identification by electron diffraction showed that mixed carbides of the form M<sub>23</sub>C6 and M7[jls-end-space/]C3 can be found in the microstructure and that these are enriched in chromium and depleted in nickel.</p>}},
  author       = {{Toller-Nordström, L. R.M. and Sten, S. and Borgh, I. and Norgren, S. M. and Borgenstam, A.}},
  issn         = {{0263-4368}},
  keywords     = {{Austenite; Cemented carbide; EBSD; MC; Martensite; Selected area diffraction; TEM}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{International Journal of Refractory Metals and Hard Materials}},
  title        = {{Metastable austenite and mixed carbides in WC-Fe/Ni/Cr/Mo cemented carbide composites}},
  url          = {{http://dx.doi.org/10.1016/j.ijrmhm.2026.107865}},
  doi          = {{10.1016/j.ijrmhm.2026.107865}},
  volume       = {{140}},
  year         = {{2026}},
}