Journal
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
Volume 62, Issue -, Pages 225-229Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrmhm.2016.07.005
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Funding
- Sandvik Coromant
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Due to health concerns surrounding the use of cobalt as a binder for tungsten carbide in cemented carbides there is a drive to find an alternative binder. Although there are many publications on cemented carbides with alternative binders very few consider the possibility to coat these materials. In this work four different binder compositions containing iron-nickel or iron -nickel-cobalt and a pure cobalt reference are investigated with respect to coating ability. It is shown that it is possible to coat these cemented carbides with alternative binders through the same chemical vapor deposition process that is commonly used for cobalt based inserts and get similar coating structure. It is further shown that it can be done without the formation of eta-phase and with comparable scratch test adhesion. (C) 2016 Elsevier Ltd. All rights reserved.
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