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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 19 - 25 (7page)
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The development of banded structure in HSLA steel during continuous cooling has been systematicallystudied using dilatometry and microstructural observations. At low cooling rates (<10 °C/min), the micro-structure contains alternating bands of ferrite and a mixture of pearlite and bainite. At higher cooling rate(>10 °C/min), the formation of pearlite is suppressed, and the corresponding microstructure consists ofbanded ferrite and bainite. Dilatometric analysis indicates that as ferrite and pearlite transformation at lowrates (or ferrite transformation at higher rates) completes, Manganese (Mn) and Carbon (C) concentrationin austenite can retard the bainitic transformation and result in the transformation stagnancy phenomenon. The magnitude of retardation and the bainite morphology are affected by Mn and C concentration. Theincreased cooling rate decreases Mn and C content in bainite, and then the length of the stagnant stagedecreases and bainite morphology changes from lower bainite to acicular ferrite.
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참고문헌 (20)
참고문헌 신청
J. M. Atienza / 2007 / Residual Stresses and Durability in Cold Drawn Eutectoid Steel Wires / Metals and Materials International 13(2):139~143
S. Thompson. / 1996 / Metall. Mater. Trans. A 27:1557
T. Araki. / 1991 / Mater. Trans 32:729
F. Xiao. / 2005 / Mater. Charact 54:305
G. Huang / 2011 / The Effect of Relaxing on the Grain Refinement of Low Carbon High Strength Microalloyed Steel Produced by Compact Strip Production / Metals and Materials International 17(5):847~852
S. Thompson. / 1996 / Metall. Mater. Trans. A 27:1557
T. Araki. / 1991 / Mater. Trans 32:729
F. Xiao. / 2005 / Mater. Charact 54:305
G. Huang / 2011 / The Effect of Relaxing on the Grain Refinement of Low Carbon High Strength Microalloyed Steel Produced by Compact Strip Production / Metals and Materials International 17(5):847~852
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