The objective of this study is to investigate the effect of deformation degree on damping capacity, transformation behavior and mechanical property in Fe-16%Mn-2%Cr and Fe-22%Mn alloys. The Fe-16%Mn2%Cr and Fe-22%Mn alloys undergo γ→ε→α' and γ...
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https://www.riss.kr/link?id=A3234590
1999
Korean
436
KCI등재
학술저널
749-753(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The objective of this study is to investigate the effect of deformation degree on damping capacity, transformation behavior and mechanical property in Fe-16%Mn-2%Cr and Fe-22%Mn alloys. The Fe-16%Mn2%Cr and Fe-22%Mn alloys undergo γ→ε→α' and γ...
The objective of this study is to investigate the effect of deformation degree on damping capacity, transformation behavior and mechanical property in Fe-16%Mn-2%Cr and Fe-22%Mn alloys. The Fe-16%Mn2%Cr and Fe-22%Mn alloys undergo γ→ε→α' and γ→ε martensitic transformation by deformation, respectively. In the two alloys, the increase in degree of cold rolling cause an increase of reverse transformation temperatures of ε→γ because the dislocations introduced by cold rolling hinder the movement of γ→ε boundaries. The decrease in mobility of γ→ε boundary is responsible for a rise in driving force, raising the reverse transformation temperature. At low strain amplitudes of 1×10^(-4)∼4×10^(-4), damping capacity increases with increasing rolling degree up to 5-10%. At a high strain amplitude, the 0% rolled alloy exhibits good damping property. The results indicate that area of γ→εboundaries at a low strain amplitude is more dominant than their mobility. With a higher strain amplitude, however, mobility becomes a major factor for damping capacity.
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