18.97.14.87
18.97.14.87
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SCIE SCOPUS
이상 스테인리스강의 냉간가공 및 열처리에 의한 내식성 및 기계적 성질의 변화
Effects of Cold Work and Heat Treatment on the corrosion Resistance and Mechanical Properties of Some Duplex Stainless Steels
남승의(S . E . Nam), 박용수(Y . S . Park), 황충호(C . H . Hwang), 김영식(Y . S . Kim)
UCI I410-ECN-0102-2008-580-001852638

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.

[자료제공 : 네이버학술정보]
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