2015
DOI: 10.1007/s12666-015-0587-8
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Influence of Intermetallic Precipitates on Pitting Corrosion of High Mo Superaustenitic Stainless Steel

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Cited by 13 publications
(3 citation statements)
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“…Some previous studies have described the precipitation process in super austenitic steels at 600-1000°C. [35][36][37] Recently, it has been reported that the σ phase was primarily precipitated when 20Cr-24Ni-6Mo SASS was aged at temperatures higher than 825°C, but the Laves phase was also detected in the 625°C to 825°C temperature range. 38,39 The results indicate that B has significant effects on the precipitation of σ-phase in S31254 steel.…”
Section: Discussionmentioning
confidence: 99%
“…Some previous studies have described the precipitation process in super austenitic steels at 600-1000°C. [35][36][37] Recently, it has been reported that the σ phase was primarily precipitated when 20Cr-24Ni-6Mo SASS was aged at temperatures higher than 825°C, but the Laves phase was also detected in the 625°C to 825°C temperature range. 38,39 The results indicate that B has significant effects on the precipitation of σ-phase in S31254 steel.…”
Section: Discussionmentioning
confidence: 99%
“…In offshore oil and gas fields, most of weld overlay that were cladded on carbon steel pipe materials are generally made by austenitic stainless steels and nickel alloy [4,5]. DSS CRA weld overlay had not been successfully accepted by the oil and gas operators due to some inherent problems in achieving pitting and crevice corrosion resistance caused by intermetallic precipitations [6,7]. Heat treatment was not commonly applied for stainless steel materials; local post weld heat treatment (PWHT) onto DSS materials will have significant impact for intermetallic precipitation, such as Alpha Prime, Chi phase, Sigma Phase, and secondary austenite [8,9,10].…”
Section: Introductionmentioning
confidence: 99%
“…Dissimilar metal combinations are popular in power generation plant, shipbuilding, nuclear and chemical plants mainly because of economic aspect [1,2]. In mentioned sectors, many ASS (austenitic stainless steel) grades are being utilized due to large production (~ 60%) worldwide with good weldability and formability [3][4][5][6], but, in highly corrosive chemical environment, the ASS grades performance are poor for localized corrosion [7]. On the contrary, austeno-ferritic (AF), especially 22Cr-5Ni-3Mo SS, attracts the great attention among the process engineers, materials engineer, and fabricators due to great resistance to corrosion popularly known as pitting and SCC (stress corrosion cracking) also less susceptibility to intergranular corrosion (IGC) [8].…”
Section: Introductionmentioning
confidence: 99%