Fe-26Mn-4Co-2Al 제진합금의 감쇠능에 미치는 결정립 크기의 영향 = Effect of Grain Size on the Damping Capacity of Fe-26Mn-4Co-2Al Damping Alloy

다국어 초록 (Multilingual Abstract)

This study was carried out to investigate the effect of grain size on the damping capacity of the Fe-26Mn-4Co-2Al damping alloy. ${\alpha}^{\prime}$ and ${\varepsilon}-martensite$ were formed by cold working, and these martensites were formed with a specific direction and surface relief. With an increase in grain size, the volume fraction of ${\alpha}^{\prime}$ and ${\varepsilon}-martensite$ increased by decrement the austenite phase stability. This volume fraction more rapidly increased in cold-rolled specimen than in the specimen that was not cold-rolled. The damping capacity also increased more with the augmentation an increased grain size and more rapidly increased in cold-rolled specimen than in the specimen that was not cold rolled. The effect of grain size on the damping capacity was larger in the cold-rolled specimen than the specimen that was not cold-rolled. Damping capacity linearly increased with an increase in volume fraction of ${\varepsilon}-martensite$. Thus, the damping capacity was affected by the ${\varepsilon}-martensite$.

참고문헌 (Reference)

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14 강창용, "가공유기 마르텐사이트 변태를 나타내는 Fe-36Mn-2Al 합금의 강도에 미치는 결정립 크기의 영향" 대한금속·재료학회 45 (45): 157-162, 2007

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