Polyphosphate coated steel sheet for superior corrosion resistance
By Rout, T.K.; Bandyopadhyay, N. & Venugopalan, T.
Published in Surface and Coatings Technology
NULL
2006
Abstract
The paper discusses the performance of a polyphosphate coated steel sheet. The coating so developed on steel sheet surface was found to be dense, and uniform with a coating weight of 1.2 to 1.7 g/m2. The corrosion resistance properties of the polyphosphate coating in the humidity cycle were found to be much superior than that of rust preventive oil (RPO) coating with surface oil content of 250 mg/m2 and conventional phosphate coating (coating weight: 2.0 g/m2). Electrochemical Impedance test in 3.5% NaCl solution revealed that polyphosphate coating is resistant to moisture up to 15 days in accelerated conditions since coating capacitance was found to be constant over the time as indicated by Bode plot. In case of RPO, coating capacitance increased with the elapse of immersion time indicating coating degradation. Similar results were also found in case of conventional phosphate coating.
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.