Improved corrosion resistance of air plasma sprayed WC-12%Co cermet coating by laser re-melting process
By Deen, K. M.; Afzal, M.; Liu, Y.; Farooq, A.; Ahmad, A.; Asselin, E.
Published in Materials Letters
NULL
2017
Abstract
Abstract WC-12%Co cermet coating was deposited on {AISI} 321 stainless steel by air plasma spraying. The coated samples were re-melted by {CO2} laser beam at 100 mm/min travel speed. The microstructural features after laser re-melting treatment demonstrated an appreciable decrease in the concentration of micro-defects. The significant improvement in the corrosion resistance and barrier properties of the laser re-melted coating was also evident from potentiodynamic polarization and impedance spectroscopy analyses. The laser re-melted coated samples had a lower corrosion current density (2.1 ?A/cm2) and higher charge transfer resistance (1.4 k?-cm2) in combination with high coating resistance (40.30 k?-cm2).
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.