1. WC HVOF Advantages Over Chrome Electroplating Matt Leahey RPI: Master’s Project Fall 2009

2. Project Report Contents Coating Backgrounds EH&S Concerns of Cr Plaiting HVOF & CR Plating Similarities Benefits of HVOF Over Cr Plating Schedule Conclusion 2 HVOF vs. Cr Electroplating M. Leahey

3. Coating Background Introduction: –What is WC-Co HVOF? –What is Chrome Electroplating? Process overview Applications General advantages and disadvantages 3HVOF vs. Cr Electroplating M. Leahey

4. EH&S Concerns of Cr Plating Present and discuss environmental concerns of chrome electroplating. Chrome is listed as toxic material by EPA List of impacts and their effects on environment: –Ex: Process run off, raw material transportation and containment Other chrome plating disadvantages will be discussed. 4HVOF vs. Cr Electroplating M. Leahey

5. HVOF & Cr Plating Similarities Will show HVOF is capable replacement for Chrome Electroplating Compare properties: –Mechanical –Thermal –Metallurgical 5HVOF vs. Cr Electroplating M. Leahey

6. Benefits of HVOF Over Cr Plate Why should one use WC HVOF over an Chrome electroplating? Environmental concerns will be basis for argument Other benefits will be shown: –Cost, equipment, repeatability, process variability. 6HVOF vs. Cr Electroplating M. Leahey

7. Schedule Plan project progression from background research, problem identification, solution and completion. Have firm understanding of both process backgrounds, applications and general characteristics. Have finalized outline of and begin report draft. (Thursday - 10/30/09) Calculate and identify material characterization of identified coatings. Address various environments coatings are used in. Gather empirical data from test reports, research papers. (11/12/09) Identify factors within environments and effects on coatings. Solidify and support advantages of HVOF over plating and their connection with these factors. Complete rough draft of paper. (12/3/09) Work to complete final draft of paper. (12/10/09) 7HVOF vs. Cr Electroplating M. Leahey

8. Conclusions This report will provide an argument stating that the WC HVOF thermal spray process is a more capable, feasible and environmentally friendly process than Chrome electroplating. 8HVOF vs. Cr Electroplating M. Leahey