2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 6: Coatings, Cement, Rare Earth & Ferro-alloys
| Editors: | Kongoli F, Yildirim H, Hainer S, Hofmann K, Proske T, Graubner C.A., Albert B |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 200 pages |
| ISBN: | 978-1-987820-29-4 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Surface Properties of Thermal Sprayed Stainless Steel Coatings after Pulsed Plasma Nitriding Process
Harun Mindivan1; Ferda Mindivan1; Ramazan Samur2;1BILECIK S.E. UNIVERSITY, Bilecik, Turkey; 2MARMARA UNIVERSITY, Istanbul, Turkey;
Type of Paper: Regular
Id Paper: 402
Topic: 19
Abstract:
In this work, the effects of pulsed plasma nitriding on HVOF-sprayed martensitic stainless steel were investigated. Martensitic stainless steel was pulsed plasma nitrided at 793 K under 0.00025 MPa pressure for 43200 s in a gas mixture of 75 % N2 and 25 % H2. The pulsed plasma nitriding resulted in not only an increase in the surface hardness, but also improvement of wear resistance of the HVOF sprayed stainless steel coating because of the CrN, Fe3N, and Fe4N phases. However, the corrosion resistance of the HVOF-sprayed martensitic stainless steel decreased notably by nitriding process.
Key words: HVOF spray coating, pulsed plasma nitriding, martensitic stainless steel, wear, corrosion
Keywords:
Coatings; Steel; Surface;References:
[1] X.Y. Li, H. Dong: Effect of annealing on corrosion behavior of nitrogen S phase in austenitic stainless steel, Materials Science and Technology, 19 (2003) 1427-1434.[2] M. Esfandiari, H. Dong: The corrosion and corrosion–wear behaviour of plasma nitrided 17-4PH precipitation hardening stainless steel, Surface & Coatings Technology, 202 (2007) 466–478.
[3] G. Park, G. Bae, K. Moon, C. Le: Effects of plasma nitriding and nitrocarburizing on HVOF-sprayed stainless steel coatings, Journal of Thermal Spray Technology, 22 (2013) 1366-1373.
[4] F. Mindivan, H. Mindivan: Comparisons of wear performance of hardened Inconel 600 by different nitriding processes, Procedia Engineering, 68 (2013) 730-735.