1975
DOI: 10.1002/maco.19750260602
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Korrosion in der Wärmeeinflußzone geschweißter chemisch beständiger Stähle und Legierungen und ihre Verhütung

Abstract: Die chemisch beständigen Stähle und Legierungen können hinsichtlich ihrer Schweißbarkeit wie folgt eingeteilt werden; (1) uneingeschränkt schweißbar; (2) schweißbar bei verringerter Wanddicke; (3) schweißbar nur bei nachträglicher Wärmebehandlung. Die Beschränkungen ergeben sich durch die Ausscheidung von Chromcarbiden und intermetallischen Phasen an den Korngrenzen; hierdurch kommt es zu einer Chrom‐ und Molybdänverarmung und schließlich zu einer Anfälligkeit für interkristalline Korrosion. Die Schweißbarkeit… Show more

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Cited by 20 publications
(11 citation statements)
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“…In addition, ferrite has a lower solubility for carbon than does austenite (see Figs. Both effects facilitate the precipitation of carbide M23C6 in a ferritic matrix, with the possibility that the precipitation times are shortened to such a degree that, according to Baumel [206,207], ferritic chromium steels may already become susceptible to corrosive attack during electric arc welding and after air cooling from temperatures above 900 0 C. Moreover, because of the low carbon solubility of ferrite, the precipitation range is shifted towards higher temperatures. Both effects facilitate the precipitation of carbide M23C6 in a ferritic matrix, with the possibility that the precipitation times are shortened to such a degree that, according to Baumel [206,207], ferritic chromium steels may already become susceptible to corrosive attack during electric arc welding and after air cooling from temperatures above 900 0 C. Moreover, because of the low carbon solubility of ferrite, the precipitation range is shifted towards higher temperatures.…”
Section: Influence Of the Type Of Structure On The Tendency Towards Cmentioning
confidence: 99%
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“…In addition, ferrite has a lower solubility for carbon than does austenite (see Figs. Both effects facilitate the precipitation of carbide M23C6 in a ferritic matrix, with the possibility that the precipitation times are shortened to such a degree that, according to Baumel [206,207], ferritic chromium steels may already become susceptible to corrosive attack during electric arc welding and after air cooling from temperatures above 900 0 C. Moreover, because of the low carbon solubility of ferrite, the precipitation range is shifted towards higher temperatures. Both effects facilitate the precipitation of carbide M23C6 in a ferritic matrix, with the possibility that the precipitation times are shortened to such a degree that, according to Baumel [206,207], ferritic chromium steels may already become susceptible to corrosive attack during electric arc welding and after air cooling from temperatures above 900 0 C. Moreover, because of the low carbon solubility of ferrite, the precipitation range is shifted towards higher temperatures.…”
Section: Influence Of the Type Of Structure On The Tendency Towards Cmentioning
confidence: 99%
“…17 and 18,page 17). 85a shows the TIP and TTC diagrams of a 17% ferritic chromium steel (AISI 430) and an 18/8 chromium-nickel steel (AISI 304), both with 0.05% carbon according to Baumel [206]. Fig.…”
Section: Influence Of the Type Of Structure On The Tendency Towards Cmentioning
confidence: 99%
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