000			01706nab a2200205 4500
005			20260520000924.0
008			260224s2011 xxu
245	0	0	_aCorrosion resistance and galvanic coupling of UNS n08031 base metal, heat-affected zone, and weld metal in phosphoric acid at different temperatures
260			_a _b _cmar. 2011
270			_a01/04/2011 ; 01/04/2011
300			_a10 p. ; 035001
520			_aTranscripción del resumen del autor. Open-circuit potential tests and potentiodynamic anodic polarization curves have been carried out to obtain information about the electrochemical behavior of a highly alloyed austenitic stainless steel (UNS N08031) used as base metal (BM), heat-affected zone (HAZ) region, and weld metal (WM). The weld was performed using the gas tungsten arc welding technique (GTAW) with a nickel-based alloy (UNS N06059) as filler metal. The galvanic corrosion generated by the electrical contact between the base metal, the HAZ, and the weld metal was estimated from the polarization diagrams according to the mixed potential theory. The objective of the present work was to study the effect of the solution temperature on the corrosion resistance of the studied materials. These materials were tested in 5.5 M phosphoric acid (H3PO4) solution at 25°C, 40°C, 60°C, and 80°C. Results demonstrated that materials passivated spontaneously in the studied solution and their corrosion resistance decreased with temperature.
581			_a3
773	0		_tCorrosion _g67
942			_cARTICULO
100	1		_aBlasco-Tamarit, E. _944816
100	1		_aGarcía-García, D.M. _944817
100	1		_aIbáñez Ferrándiz, M. _944818
999			_c174316 _d174316