Susceptibility of electrically welded Cr18Ni10Ti pipe to intercrystalline corrosion

Autor: T. M. Koval'chuk, O. S. Vil'yams
Rok vydání: 1963
Předmět:
Zdroj: Metal Science and Heat Treatment. 5:33-35
ISSN: 1573-8973
0026-0673
DOI: 10.1007/bf00650607
Popis: 1. The susceptibility of electrically welded pipes to intercrystalline corrosion can be explained by the low concentration of combined titanium. The amount of combined titanium in the weld was 0.14–0.22%. An increase of the concentration of carbon in the weld (by 0.01–0.02%) compared with that in the base metal apparently also increases the susceptibility to intercrystalline corrosion. 2. Heat treatment of electrically welded pipes (quenched from 1050°C) increases the amount of combined titanium in the weld seam and increases its resistance to intercrystalline corrosion. 3. Heat-treated electrically welded pipes subsequently annealed at 650°C (Cr18Ni10Ti steel) in which at least 0.1 mm of the outside weld seam was ground off withstand the intercrystalline corrosion test by the AM method without preliminary cold deformation.
Databáze: OpenAIRE