Actas de congresos
Cavitation Erosion Resistance Improvement Of A Multipass Friction Stir Processed Uns S32205 Duplex Stainless Steel
Registro en:
9781627089982
Asm Proceedings Of The International Conference: Trends In Welding Research. , v. , n. , p. 307 - 315, 2013.
2-s2.0-84880654986
Autor
Velasquez E.
Hoyos E.
Santos T.F.A.
Ramirez A.J.
Lopez D.M.
Institución
Resumen
This paper investigates the behavior of a UNS S32205 duplex stainless steel rolled and annealed that has been friction stir processed by a multipass and overlap series of four beads. The cavitation erosion resistance of the samples was improved by this process when comparing incubation times, wear rates and surface roughness on nugget zones and the as received material. The processed material (PM) was obtained in a dedicated TTI FSW equipment with 200 rpm and 100 mm/min and the cavitation erosion tests were done in a vibratory apparatus according to ASTM G32 standard. Roughness measurements proved to be extremely useful to indirectly determine the stages of the cavitation erosion process. The PM improved its cavitation resistance by having a 200% longer incubation period and a 120% reduction in its maximum erosion rate comparing to the as received base material (BM). Furthermore, the PM had a reduction in the cumulative mass loss of 74% compared with the BM after 10 hours of cavitation erosion (CE) testing. This improvement in the material response against CE seems to be related the recrystallization and refinement of the microstructure and it also seems to be related to the welding sequences employed. Copyright © 2013 ASM International® All rights reserved.
307 315 ASM International Lippold, J.C., Kotecki, D.J., (2005) Welding Metallurgy and Weldability of Stainless Steels, , Wiley-Interscience Kwok, C.T., Man, H.C., Cheng, F.T., (1998) Cavitation Erosion and Damage Mechanisms of Alloys with Duplex Structures, A242, pp. 108-120. , Hong Kong: Materials Science and Engineering Gandra, J., Miranda, R.M., Vilac, P., (2011) Effect of Overlapping Direction in Multipass Friction Stir Processing, pp. A528+5592-5599. , Materials Science and Engineering. Lisboa, Portugal Mishra, R.S., Mahoney, Z.Y., (2005) Friction Stir Welding and Processing, pp. R50+1-78. , Materials Science and Engineering Santos, F.A., Hermenegildo, T.F.C., Afonso, C.R.M., Marinho, R.R., Paes, M.T.P., Ramirez, A.J., (2010) Mech. Fract. Eng, 77, pp. 2937-2945 (1998) Standard Test Method for Cavitation Erosion Using Vibratory Apparatus, , ASTM G 32. ASTM Standards. AMERICAN SOCIETY FOR TESTING AND MATERIALS (1996) Geometrical Product Specifications (GPS) Surface Texture: Profile Method - Rules and Procedures for the Assessment of Surface Texture, , ISO 4288 (1997) Geometrical Product Specifications (GPS) Surface Texture: Profile Method - Terms, Definitions and Surface Texture Parameters, , ISO 4287 Pohl, M., Stella, J., Quantitative CLSM roughness study on early cavitation-erosion damage (2002) Wear, 252 (5-6), pp. 501-511 Leith, W.C., (1959) Can. Eng. J., 42, pp. 43-49 Chiu, K.Y., Cheng, F.T., Man, H.C., Evolution of surface roughness of some metallic materials in cavitation erosion (2005) Ultrasonics, 43, pp. 713-716 Escobar, Correa, R., Santa, J.P., Giraldo, J.E., Toro, A., Cavitation erosion of welded martensitic stainless steel coatings (2010) Proceedings from the First International Brazilian Conference on Tribology, TriboBr, 2012, pp. 299-309. , RJ-Brazil. ISSN 2179-3956 Espitia, L.A., Toro, A., Cavitation resistance, microstructure and surface topography of materials used for hydraulic components (2010) Journal of Tribology, 43, pp. 2037-2045 Gadelmawla, E.S., Roughness parameters (2002) Journal of Materials Processing Technology, 123, pp. 133-145 Karimi, A., Cavitation Erosion of a Duplex Stainless Steel (1987) Materials Science and Engineering, 86, pp. 191-203 Santos, A., (2000) Desenvolvimento de Procedimento de Reparo por Soldagem em Acos Inoxidáveis Mertensíticos, Com Metal de Adicao Similar Sem TTP, , Florianópolis Aloraier, A., Ibrahim, R., Ghojel, J., Eliminating post-weld heat treatment in repair welding by temper bead technique: Role bead sequence in metallurgical changes (2004) Monash University/Australia: Journal of Materials Processing Technology Escobar, J.D., Velásquez, E., Santos, T.F.A., Ramirez, A.J., Lopez, D., Improvement of cavitation erosion resistance of a dúplex stainless steel through friction stir processing (2012) Wear, , IN REVIEW