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이응조,마창익,안종관 대한금속재료학회(대한금속학회) 1999 대한금속·재료학회지 Vol.37 No.12
Electrodeposition experiments of gradually composite alloys were conducted using rotating disc geometry. Effects of rotating speed and potential on the composition of alloys were studied. Mechanical properties and corrosion resistance of the gradually composite alloys were compared with those of the normally deposited alloys. Zinc content of Zn-Ni alloys increased as increasing disc rotation speed and voltage. However, Zn content of Zn-Ni-P alloys decreased but those of Ni and P increased as raising voltage. Zinc content of Zn-Fe and Zn-Fe-P alloys increased as raising voltage, however, Zn, Fe and P contents were not changed as increasing disc rotation speed. Corrosion resistance and adhesion of the gradually composite alloys for all the tested alloys were better than the normally deposited ones.
안재우,마창익,안종관 대진대학교 1999 大眞論叢 Vol.7 No.-
Electrodeposition experiments of gradually composite alloys were conducted using rotating disc geometry. Effects of rotating speed and potential on the composition of alloys were studied. Mechanical properties and corrosion resistance of the gradually composite alloys were compared with those of the normally deposited alloys. Zinc content of Zn-Ni alloys increased as increasing disc rotation speed and voltage. Corrosion resistance and adhesion of the gradually composite alloys for all the tested alloys were better than the normally deposited ones.
김도용(Doyong Kim),마창익(Chanik Ma),김대업(Daeup Kim),한요섭(Yosub Han),이재철(Jaechul Lee) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3
Effect of various casting conditions on the microstructures and cooling behaviors of the semi-solid A356 alloy were investigated. Cooling of A356 melt was carried out under the various conditions(melt pouring temp. : 620~690℃, mold temp. : RT-350℃, atmosphere cooling or insulation). The size and morphology of primary solid phases during continuous cooling were influenced by melt and mold conditions. When melt superheat was below 35℃, it occurred undercooling and then resulted in equiaxed solidification. In case of slow cooling rate, it was effective in forming of round phases.