인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 882 - 890 (9page)
이용수
초록· 키워드
The mechanical and corrosion behaviors of low carbon DP steel were studied based on different processing routes: (1)intercritical annealing (IA), (2) step quenching (SQ) via austenitization and quick transferring of the sample to the secondfurnace, and (3) Slow SQ via furnace cooling to the desired temperature. The properties were found to be highly dependenton the volume fraction of martensite (VM) and the density of ferrite/martensite interfaces. However, at the same martensitecontent, the mechanical properties of Slow SQ sheet were inferior than those of SQ and IA sheets, which were related to therelatively poor work-hardening behavior due to the severe partitioning of Mn between ferrite and martensite phases. Thelatter was also responsible for an increase in the corrosion current density (icorr) via galvanic corrosion. These results wereanalyzed based on the polarization curves and Nyquist plots obtained from the electrochemical impedance spectroscopytest. This study revealed that the SQ route can result in both better mechanical performance and higher corrosion resistance.
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