Effect of zirconium addition in HVOF sprayed Ni–20Cr coating
Source abstract
Abstract
High velocity oxyfuel spraying was used to deposit Ni–20Cr coating on an ASTM-SA213-T22 boiler steel with and without 1%Zr addition. High temperature oxidation behaviour of both coatings was evaluated under cyclic thermal loading conditions at an elevated temperature of 900°C. Mass change data were measured to formulate the kinetics of oxidation for the specimens. The exposed specimens were characterised by X-ray diffraction and field emission scanning electron microscopy/energy dispersive spectroscopy. It was observed that mass loss was reduced by 46% after the Zr addition in the commercially available Ni–20Cr coating. The formation of Zr rich pegs in the blended coating might have resulted in beneficial results.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced materials and composites · Erosion and Abrasive Machining
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
RIMT-Institute of Engineering and Technology Mandi Gobindgarh, Punjab, India
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