Degradation of Sintered Carbides in Different Corrosive Environments

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F19%3A43957652" target="_blank" >RIV/49777513:23210/19:43957652 - isvavai.cz</a>
Result on the web
<a href="https://www.daaam.info/Downloads/Pdfs/proceedings/proceedings_2019/089.pdf" target="_blank" >https://www.daaam.info/Downloads/Pdfs/proceedings/proceedings_2019/089.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2507/30th.daaam.proceedings.089" target="_blank" >10.2507/30th.daaam.proceedings.089</a>

Result language
angličtina
Original language name
Degradation of Sintered Carbides in Different Corrosive Environments
Original language description
The aim of the study was to determine the corrosion resistance of different types of sintered carbides in alkaline and acidic environments. The degradation environment for sintered carbides was chosen so that its pH corresponds to those with which these carbides normally come into contact during their use as machining tools or drilling tools used in the extractive industry. The experimental material was selected from sintered carbides based on WC-Co and WC-Ni. The materials chosen differed in the contents of the binder and the grain size of the WC. Three alkaline media and three acidic media were selected as the degradation media, with pH values of 0, 2, 7 and 12, in which the rate at which dissolution of the cemented carbide was observed. In addition to determining the solubility rate of the binder, the corrosion resistance of sintered carbides was evaluated using a potentiostat and the binder fraction in the solvents using atomic absorption spectrometry. The experiments showed, for example, that the highest amount of binder in sintered carbides with a cobalt binder was dissolved in solutions with high sulphuric acid content. In contrast with the solution of NaOH or CH3COOH.
Czech name
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Czech description
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Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 30th International DAAAM Symposium "Intelligent Manufacturing & Automation"
ISBN
978-3-902734-22-8
ISSN
1726-9679
e-ISSN
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Number of pages
8
Pages from-to
0646-0653
Publisher name
DAAAM International Vienna
Place of publication
Vídeň
Event location
Zadar
Event date
Oct 23, 2019
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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