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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 302 - 305 (4page)
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초록· 키워드
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The effects of nitrogen addition on the strain induced martensitic transformation (SIMT) behavior of duplex stainless steel (D-STS) with the low nickel content were examined in a wide range of strain by means of cold rolling. Nitrogen of 0.1，0.2 and 0.3 wt.% was added into Fe-20Cr-5Mn-0.2Ni D-STS (in wt.%) and cold rolling was conducted up to the effective strain of ~1.45 after annealing at 1100 C for 30 min. In the as-annealed state, the austenite fraction increased with increasing the N content. Regardless of the N content, the ferrite grain size was coarser than that of austenite. The stacking fault energy of austenite of the present D-STSs inferred by the element partitioning analysis was low enough so that SIM transformation is available. Accordingly, during cold rolling, SIMT occurred in austenite with a sequential manner of austenite → ε martensite → α’ martensite with increasing strain. By contrast, the deformed microstructure of ferrite was dominated by dislocation cells.
목차
Abstract
1. 서론
2. 실험방법
3. 실험결과
4. 요약
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UCI(KEPA) : I410-ECN-0101-2014-551-000204238