Artículos de revistas
Implant Test And Acoustic Emission Technique Used To Investigate Hydrogen Assisted Cracking In The Melted Zone Of A Welded Hsla-80 Steel [uso Del Ensayo De Implante Y La Tecnica De Emision Acustica Para Estudiar El Agrietamiento Asistido Por Hidrogeno En La Zona Fundida En La Soldadura De Un Acero Hsla-80]
Registro en:
Revista De Metalurgia (madrid). Centro Nacional De Investigaciones Metalurgicas, Madrid, Spain, v. 35, n. 4, p. 233 - 241, 1999.
348570
2-s2.0-0033159969
Autor
Fals H.C.
Trevisan R.E.
Institución
Resumen
Weld metal hydrogen assisted cracking was studied using two flux cored wire (AWS E 70T-5 and AWS E 120 T5-K4) and a mixture gas of CO2 + 5% H2 to induce high values of diffusible hydrogen in high strength low alloy steel (HSLA-80) weldments. An Acoustical Emission Measurement System (AEMS) RMS voltmeter was coupled to the implant test (NF 89-100) apparatus to determine energy, amplitude and event numbers of signal. All cracks were initiated in the partially melted zone and propagated into the coarse-grained region of the heat affected zone when E 70 T5 consumable was used, and the quasi-cleavage fracture mode was predominant. When E 120 T5 K4 consumable was used the cracks propagated vertically across the fusion zone, and a mixed fracture mode was the most important. A significant relationship between acoustic emission parameters and fracture modes was found. 35 4 233 241 Vuick, J., (1992) Weld. World, V31 (5), pp. 308-321 Svensson, L.E., (1994) Control of Microestrutures and Properties in Steel Arc Welds, pp. 39-44. , The ESAB Group. Esab AB. Gotherburg (Suecia). CRC Pres, Inc Beachem, C.D., (1972) Metall. Trans., 3 (2), pp. 437-451 Yurioka, N., Suzuki, H., (1990) Int. Mater. Rev., 35 (4), pp. 217-249 Gedeon, S.A., Eagar, T.W., (1990) Weld. J., pp. 213s. , junio Fang, C.K., Kannatey-Asibu E., Jr., Barber, J.R., (1995) Weld. J., pp. 177-184. , junio Trevisan, R.E., Ferraresi, A.V., Abstracts of Papers (1998) 79th Am. Weld. Soc. Annual Meeting (EE.UU.), p. 151. , 26-30 abril Carpenter, S.H., Smith D.R., Jr., (1990) Metall. Trans. A, 21 A, pp. 1933-1938. , julio Fals, H.C., Trevisan, R.E., (1998) Proceedings. 17th Int. Offshore & Arctic Engineering Conference, , Lisboa (Portugal), 5-9 julio (1986) Standard Methods for Determination of the Diffusible Hydrogen Content of Martensitic, Bainitic, and Ferritic Steel Weld Metal Produced by Arc Welding, , 17 p (1982) Cold Cracking Test Methods Using Implants, , Abril 10 p Mota, J.M.F., Apps, R.L., (1982) Weld. J., pp. 222s. , julio