열처리공학회지 (Journal of the Korean Society for Heat Treatment)
- 제3권4호
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- Pages.41-52
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- 1990
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- 1225-1070(pISSN)
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- 2508-4046(eISSN)
Fe-Ni합금(合金)의 마르텐사이트변태온도(變態溫度)(Ms)와 역변태온도(逆變態溫度)(As)에 미치는 소성가공(塑性加工)의 영향(影響)
Effect of Prior Deformation on the Martensitic Transformation Temperature(Ms) and Reversed Martensitic Transformation Temperature(As) in Fe-Ni Alloy
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Shon, In-Jin
(Dept. of Material Engineering, Chonbuk National University) ;
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Nam, Kee-Seok
(Heat Treating Lab., Korea Institute of Machinery and Metals)
- 발행 : 1990.12.31
초록
This research has been performed in order to investigate the effect of prior deformation on the Ms temperature and reversed As of Fe-Ni alloy. The Ms temperature rose with increment of strain to 30% but lowered over 50%. It can be analysed that martensitic transformation was promoted by partial dislocation in low strain, but suppressed by dislocation cell structures in high strain. The As temperature was substantially increased with higher deformation to 20% but slowly above 50%. It may be caused that as the transition bands formed by deformation constrained shear strain, therefore austenitic transformation was hindered.
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