1964
DOI: 10.1002/maco.19640150113
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Beitrag zur Frage der Beständigkeit von austenitischen Chrom‐Nickel‐Stählen mit Mo und Cu‐Gehalten bei Einwirkung von Schwefelsäure

Abstract: Die Widerstandsfähigkeit gegen Schwefelsäure, die bei 1818 CrNi‐Stahl sehr beschränkt ist, wird durch Zulegierung von Mo und Cu sowie durch Erhöhung des Ni‐Gehaltes entscheidend verbessert. Es werden informatorische Untersuchungen über die Wirkung eines erhöhten Ni‐Gehaltes auf die allgemeine Beständigkeit und auf die Empfindlichkeit gegen Spannungsrißkorrosion in Schwefelsäure beschrieben; dabei wird ein Vergleich mit einer Nickelbasislegierung angestellt. Ein mit Mo und Cu legierter CrNi‐Stahl mit etwa 34%… Show more

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Cited by 10 publications
(2 citation statements)
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“…The surface corrosion product formed during testing showed the presence of Cu [3,7], which was suggested to be protective against general corrosion and also a prerequisite for the SCC initiation and/or propagation. This was supported by the SCC resistance exhibited by the Cu containing alloys, when H 2 S gas was led into the SCC system to hinder the deposition of metallic Cu into the surface film by forming the sulfides of Cu which otherwise was susceptible to SCC [4] though the SCC system might be perturbed by the H 2 S gas introduced [9].…”
Section: Introductionmentioning
confidence: 97%
See 1 more Smart Citation
“…The surface corrosion product formed during testing showed the presence of Cu [3,7], which was suggested to be protective against general corrosion and also a prerequisite for the SCC initiation and/or propagation. This was supported by the SCC resistance exhibited by the Cu containing alloys, when H 2 S gas was led into the SCC system to hinder the deposition of metallic Cu into the surface film by forming the sulfides of Cu which otherwise was susceptible to SCC [4] though the SCC system might be perturbed by the H 2 S gas introduced [9].…”
Section: Introductionmentioning
confidence: 97%
“…Earlier studies on Cu additions in the Cr-Ni-Mo austenitic stainless steels [3][4][5] and the type 304 stainless steels [6][7][8] indicate the susceptibility of both the alloys to SCC in hot H 2 SO 4 environments without chlorides at open circuit potential (OCP) and potentials close to it. The surface corrosion product formed during testing showed the presence of Cu [3,7], which was suggested to be protective against general corrosion and also a prerequisite for the SCC initiation and/or propagation.…”
Section: Introductionmentioning
confidence: 99%