Susceptibility of electrically welded Cr18Ni10Ti pipe to intercrystalline corrosion
Autor: | T. M. Koval'chuk, O. S. Vil'yams |
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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 |
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