DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sung Hwan | ko |
dc.contributor.author | Cha, Ji-Hwan | ko |
dc.contributor.author | Jang, Changheui | ko |
dc.contributor.author | Sah, Injin | ko |
dc.date.accessioned | 2020-06-02T08:20:07Z | - |
dc.date.available | 2020-06-02T08:20:07Z | - |
dc.date.created | 2020-06-02 | - |
dc.date.created | 2020-06-02 | - |
dc.date.created | 2020-06-02 | - |
dc.date.created | 2020-06-02 | - |
dc.date.issued | 2020-04 | - |
dc.identifier.citation | METALS, v.10, no.4 | - |
dc.identifier.issn | 2075-4701 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274456 | - |
dc.description.abstract | Austenitic Fe-base alloys, SS 316H and Alloy 800HT, were diffusion bonded for use in compact-type heat exchangers in supercritical-carbon dioxide (S-CO2) Brayton cycles. For diffusion bonded 316H, grain boundary migration across the bond-line was observed despite the formation of some Cr-rich carbide, and its tensile properties were similar to those of as-received 316H. However, diffusion bonded Alloy 800HT exhibited severely degraded elongation compared to as-received 800HT due to the formation of continuous Ti-rich carbides along the bond-line. Post-bond heat treatment (PBHT) was found to improve elongation at fracture for diffusion bonded alloys. However, a subsequent corrosion test in S-CO2 at 600 degrees C (20 MPa) for 1000 h resulted in a loss of elongation. This was much more severe for PBHT-ed 800HT due to the formation of Cr-rich carbides at the bond-line. Meanwhile, it was found that the effect of ageing on loss of elongation during high temperature exposure was greater than that of S-CO2 environment. | - |
dc.language | English | - |
dc.publisher | MDPI | - |
dc.title | Microstructure and Tensile Properties of Diffusion Bonded Austenitic Fe-Base Alloys-Before and After Exposure to High Temperature Supercritical-CO2 | - |
dc.type | Article | - |
dc.identifier.wosid | 000531826500059 | - |
dc.identifier.scopusid | 2-s2.0-85083453240 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 4 | - |
dc.citation.publicationname | METALS | - |
dc.identifier.doi | 10.3390/met10040480 | - |
dc.contributor.localauthor | Jang, Changheui | - |
dc.contributor.nonIdAuthor | Cha, Ji-Hwan | - |
dc.contributor.nonIdAuthor | Sah, Injin | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | diffusion bonding | - |
dc.subject.keywordAuthor | austenitic alloys | - |
dc.subject.keywordAuthor | supercritical-carbon dioxide | - |
dc.subject.keywordAuthor | ageing | - |
dc.subject.keywordAuthor | carbides | - |
dc.subject.keywordPlus | CO2 BRAYTON CYCLES | - |
dc.subject.keywordPlus | CARBURIZATION BEHAVIOR | - |
dc.subject.keywordPlus | CORROSION | - |
dc.subject.keywordPlus | STEELS | - |
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