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Dynamic Load Control 에 의한 연료전지 분리판의 성형성 연구 및 평가
김민준(M. J. Kim),석호현(H. H. Seok),이경훈(K. H. Lee),박원태(W. T. Park),강충길(C. G. Kang) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.10
The weight of bipolar plate is the one of the crucial component for PEMFC stack improving power density. Titanium has good mechanical properties such as high corrosion resistance. Electrical resistivity, and high thermal conductivity. Furthermore, the using of Titanium as a bipolar plate instead of graphite is to reduce the bipolar plate cost and the ease of machining. Therefore in this study, Titanium is selected as the ideal material for a bipolar plate. In this paper, the results of feasibility experiments conducted with the aim of developing fuel cells in which Titanium bipolar plates with multiple channels are presented.
이상훈,박원태 한국산업안전학회 1999 한국안전학회지 Vol.14 No.4
The standard of the allowed stress in designing components such as shafts used in machinery and aircraft should be determined. It is very important to estimate fatigue strength of a component analytically, because service stress of the components is usually under the level of its fatigue limit. Improving the fatigue strength of each component in machinery is essential for high performance, lightness, and endurance. Surface treatment of components is widely used for these purpose. In this research, the fatigue behaviors of SCM415 steel and carbonitried SCM415 steel are examined. In the analysis of the fatigue behaviors of the carbonitrided SCM 415 steel, we propose a modified fatigue strength evaluation model and modified formulae.