AN INVESTIGATION ON THE AQUEOUS CORROSION BEHAVIOUR OF PLASMA TRANSFERRED ARC HARDFACED ALLOYS
Keywords:
Plasma Transferred Arc Hardfacing, Dilution, Pitting Corrosion, Stainless Steel, Cobalt and NickelAbstract
In this paper an attempt has been made to investigate the corrosion resistance properties of three widely used hardfacing alloys in various aqueous environments. The corrosion tests were carried out on Plasma Transferred Arc Hardfaced deposits having minimum dilution. It was found that the stainless steel hardfaced deposit had high corrosion resistance compared to Nickel and Cobalt based deposits. The high corrosion resistance of the stainless steel hardfacing was solely due to the presence of high chromium content in the solid solution of the deposit.
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