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FeMX(M = Mo, Ta, X=N, C) 박막의 자기 특성 및 미세구조 변화
신동훈(D. H. Shin),최운(W. Choi),김형준(H. J. Kim),남승의(S. Y. Nam),안동훈(D. H. Ahn) 한국자기학회 1995 韓國磁氣學會誌 Vol.5 No.5
Magnetic properties of FeMoN, FeMoTaN, FeTaN and FeTaC films deposited by DC magnetron reactive sputter were investigated, and correlated with their microstructure. FeMoN films were not showen the soft magnetic properties, because of generated Fe₂Mo, Fe_(3-2)N and Fe₄N phases. Ta added films, however, effectivly retarded the α-Fe grain growth and suppressed the generation of Fe nitrides or carbides during heat treatement. The soft magnetic properties of Bs: 15 kG, Hc: 0.25 Oe, μ' 4000(at 5 ㎒), and Bs: 14.5 kG, Hc: 0.25 Oe, μ': 2700 (5㎒) were observed in Fe_(78.8)Ta_(8.5)N_(12.7) and Fe_(75.6)Ta_(8.l)C_(16.3) films, respectively.
이상 스테인리스강의 냉간가공 및 열처리에 의한 내식성 및 기계적 성질의 변화
김영식,남승의,박용수,황충호 대한금속재료학회(대한금속학회) 1987 대한금속·재료학회지 Vol.25 No.7
Effects of cold work and aging treatment on corrosion and microhardness of duplex stainless steels were studies employing weight-loss tests, polarization tests and micronardness test. Degree of cold work applied were 15%, 30% and 40%, and temperatures for aging were 475℃, 600℃ and 800℃. Cold work enhanced the corrosion resistance, and this fact was attributed to decrease in the amount of ferrite and change in its configuration. Cold work higher than 15% was detrimental, because increase in defect concentration counteracted against the beneficial effects of ferrite. Aging treatment improved the corrosion resistance and the hardness. Spinodal decomposition at 475℃ and ferrite-austenite transformation at higher temperatures were attributed to the improvements. Applying 30% cold work followed by aging heat treatment at 475℃ was found the best in treating the duplex stainless steels studied.