DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, Seok-Pil | ko |
dc.contributor.author | Kwon, Hyuk-Sang | ko |
dc.date.accessioned | 2013-02-27T08:16:58Z | - |
dc.date.available | 2013-02-27T08:16:58Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1993-10 | - |
dc.identifier.citation | CORROSION, v.49, no.10, pp.802 - 808 | - |
dc.identifier.issn | 0010-9312 | - |
dc.identifier.uri | http://hdl.handle.net/10203/67423 | - |
dc.description.abstract | Effects of nickel (Ni) on the stress corrosion susceptibility of high-chromium (Cr) ferritic stainless steels (SS) in boiling solution of 42% lithium chloride (LiCl) plus thiourea (NH2CSNH2) were investigated using a uniaxial tension-constant load tester. The influence of Ni on film breakdown potential, repassivation rate, creep behavior, and susceptibility to hydrogen (H)-induced failure of the alloys was evaluated. Commercial alloys of 29% Cr-4% molybdenum (Mo) (UNS S44700) and 29% Cr-4% Mo-2% Ni (UNS S44800) ferritic SS were compared. The 29% Cr-4% Mo alloy was immune to stress corrosion cracking (SCC) at open-circuit potential (OCP) but became susceptible when polarized anodically to critical cracking potential (E(cc), -450 mV(sce)) which was 20 mV(sce) more noble to the stabilized corrosion potential (E(corr) -470 mV(sce)). Addition of 2% Ni to the 26% Cr-4% Mo alloy did not affect E(cc), but did induce susceptibility to cracking by increasing E(corr) to a value 80 mV(sce) noble to E(cc). The 2% Ni addition to 29% Cr-4% Mo alloy reduced film breakdown potential (E(b)) and the repassivation rate and significantly increased susceptibility to H embrittlement (HE). These factors contributed to greater susceptibility to SCC of 29% Cr-4% Mo-2% Ni alloy compared to the 29% Cr-4% Mo alloy. Similarities in fracture morphology between samples that failed by SCC in a hot Cl- solution and those that failed under load during H charging in 1 N sulfuric acid (H2SO4) plus sodium arsenite (NaAsO2) solution suggested HE was involved in the propagation mechanism of SCC in the ferritic SS studied. | - |
dc.language | English | - |
dc.publisher | Natl Assoc Corrosion Eng | - |
dc.title | Effects of Nickel on the Stress Corrosion Susceptibility of High Chromium Ferritic Stainless Steels in a Hot Chloride Solution | - |
dc.type | Article | - |
dc.identifier.wosid | A1993MD96900003 | - |
dc.type.rims | ART | - |
dc.citation.volume | 49 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 802 | - |
dc.citation.endingpage | 808 | - |
dc.citation.publicationname | CORROSION | - |
dc.contributor.localauthor | Kwon, Hyuk-Sang | - |
dc.contributor.nonIdAuthor | Jang, Seok-Pil | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | CHLORIDE | - |
dc.subject.keywordAuthor | CHROMIUM | - |
dc.subject.keywordAuthor | CRITICAL CRACKING POTENTIAL | - |
dc.subject.keywordAuthor | FERRITIC STAINLESS STEELS | - |
dc.subject.keywordAuthor | LITHIUM | - |
dc.subject.keywordAuthor | NICKEL | - |
dc.subject.keywordAuthor | REPASSIVATION | - |
dc.subject.keywordAuthor | STRESS CORROSION CRACKING | - |
dc.subject.keywordAuthor | THIOUREA | - |
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