Jung-Gu Kim
성균관대학교 소재공학과 · 재료과학
김정구 교수 연구실은 부식 메커니즘과 내구성 향상을 위한 고도화된 실험 설계 및 분석 기법을 기반으로, 산업 현장에서의 금속 부식 문제를 해결하는 데 초점을 맞추고 있습니다. 주로 파이프라인, 스테인리스강, 구리 및 저탄소강 등 다양한 금속 소재의 부식 거동을 전기화학적 방법과 표면 분석 기술을 융합하여 연구합니다. 특히 반응 표면 방법론(RSM)과 AI 기반 기술을 활용한 부식 요인 분석 및 재료 설계 최적화에 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
External damage to buried pipelines is mainly caused by corrosive components in soil solution. The reality that numerous agents are present in the corrosive environment simultaneously makes it troublesome to study. To solve that issue, this study aims to determine the influence of the combination of pH, chloride, and sulfate by using a statistical method according to the design of experiment (DOE). Response surface methodology (RSM) using the Box-Behnken design (BBD) was selected and applied to
In this study, the cause of failure of a low-carbon steel pipe meeting standard KS D 3562 (ASTM A135), in a district heating system was investigated. After 6 years of operation, the pipe failed prematurely due to pitting corrosion, which occurred both inside and outside of the pipe. Pitting corrosion occurred more prominently outside the pipe than inside, where water quality is controlled. The analysis indicated that the pipe failure occurred due to aluminum inclusions and the presence of a pear
Carbonaceous residues on copper pipes during the manufacturing process are known to be one of the main causes of pitting corrosion on copper pipes. This study examined the corrosion-inhibiting effect of benzotriazole (BTA) on C12200 copper pipes with carbonaceous film in synthetic tap water. In the absence of BTA, localized corrosion mechanisms due to galvanic corrosion, crevice corrosion, and oxygen-concentration cell were proposed in the boundary part of the carbonaceous film on the copper thr
This study investigates the corrosion resistance of Type 316 stainless steel as a candidate material for radioactive waste disposal canisters. The viability of stainless steel is examined under groundwater conditions with variations in pH, bisulfide ions (HS<sup>-</sup>), and chloride ions (Cl<sup>-</sup>) concentrations. Utilizing response surface methodology, correlations between corrosion factors and two crucial response variables, passive film breakdown potential and protection potential, ar
