| About this Abstract |
| Meeting |
2011 TMS Annual Meeting & Exhibition
|
| Symposium
|
Surfaces and Heterostructures at Nano- or Micro-Scale and Their Characterization, Properties, and Applications
|
| Presentation Title |
Effect of Pulsed Electrodeposition Conditions and Reinforcement Content on Microstructure and Tribological Properties of Nickel Composite Coatings |
| Author(s) |
Tushar M. Borkar, Sandip P Harimkar |
| On-Site Speaker (Planned) |
Tushar M. Borkar |
| Abstract Scope |
Pure nickel and nickel composite coatings (Ni-Al2O3, Ni-SiC, and Ni-ZrO2) were deposited from Watts bath using direct current (DC), pulsed current (PC), and pulsed reverse current (PRC) deposition conditions. Detailed investigations on the effect of deposition conditions on the evolution of surface microstructure, crystallographic micro-texture, microhardness, and sliding wear behavior of pure nickel and nickel composite coatings are presented. Coatings deposited by PC and PRC techniques resulted in more random crystallographic texture. The composite coatings deposited using PC and PRC deposition also exhibited significant improvement in microhardness and wear resistance. Also, the effect of nanoparticle content of the electrolyte bath on the surface microstructure, tribological properties, and level of reinforcement in the Ni-Al2O3 composite coating is investigated. The reinforcement of nanoparticles as well as microhardness and wear resistance of Ni-Al2O3 composite coatings increased linearly with the amount of nanoparticle loading in the electrolyte bath. |
| Proceedings Inclusion? |
Planned: A CD-only volume |