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The Cause of Intergranular (IG) Fracture by Thermal Embrittlement in SA508 of Reactor Pressure Vessel (RPV) Steel
압력 용기 재료 SA508에서 열적 처리에 따른 입계 파괴의 원인

Sung Soo Kim, Jung Jong Yeob, Young Suk Kim
김성수, 정종엽, 김영석

Korean J. Met. Mater. 2021;59(9):589-601. Published online 2021 Aug 4
DOI: https://doi.org/10.3365/KJMM.2021.59.9.589

Abstract
Intergranular(IG) fracture due to thermal treatment has been reported in a reactor pressure vessel(RPV) steel of Russian light water reactor in last decade. This is attributed to grain boundary segregation of phosphorus (P) or precipitation of carbide, etc.. This is a finding a difference in microstructure before and after IG..... More

Web of Science 3 Crossref 3

Susceptibility to Severe PWSCC (primary water stress corrosion cracking) of LTMA (low temperature mill anneal) Alloy 600
저온 풀림 처리 Alloy 600이 1차수 응력 부식 균열에 가장 예민한 이유

Sung Soo Kim, Jung Jong Yeob, Young Suk Kim
김성수, 정종엽, 김영석

Korean J. Met. Mater. 2020;58(12):815-821. Published online 2020 Dec 4
DOI: https://doi.org/10.3365/KJMM.2020.58.12.815

Abstract
It has been proposed that a primary water stress corrosion cracking (PWSCC) in pressurized water reactor (PWR) is governed by a lattice contraction due to a short range ordering reaction in Alloy 600. This leads researcher to think that the kinetics of lattice contraction may control a susceptibility of PWSCC..... More

Web of Science 4 Crossref 4

Short Range Ordering (SRO) Reaction in Ni-base Alloy X-750
Ni-base X-750 합금에서의 단 범위 규칙화 반응

SungSoo Kim, Jung Jong Yeob, Young Suk Kim
김성수, 정종엽, 김영석

Korean J. Met. Mater. 2020;58(9):590-598. Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.590

Abstract
The short range ordering (SRO) reaction of the X-750 Ni-base alloy used as a garter spring material for CANDU reactors was systematically investigated through differential scanning calorimeter (DSC) analysis. Water quenching (WQ) after solution annealing (SA) and 20% cold rolled (CR) X-750 were prepared and these samples were subjected to..... More

Web of Science 5 Crossref 4

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