To treat the welding zone of a workpiece soudee of ferritic stainless steel in order to increase the resistance to intergranular corrosion

摘要

P & this process consists, after solidification of the metal of the weld 18, for grinding the surface of the welded part of the side of which has been carried out the welding, to a depth substantially uniform in the direction of the length of the weld and so that the portion of the metal is removed by grinding, 18 ′, 16 ′ extends in cross-section at the - addition of the interface between the weld 14 and the base metal, of the two sides of the weld, the depth of the grinding being between at least 0,0127 mm at the interface 14 and less than 10% of the thickness of the part before the grinding. / p & & p & the invention is applicable in particular to the tubes in the ferritic stainless steel. / p