pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (29권2호 59-63)
Effects of Ti on Mechanical Property and Damping Capacity in Hot-rolled Fe-17%Mn Alloy
열간압연한 Fe-17wt%Mn 합금의 기계적 성질과 진동감쇠능에 미치는 티타늄 첨가의 영향
Tai-Hoon Kim, Jung-Chul Kim*
Effects of Ti on damping capacity and mechanical properties are investigated in hot rolled Fe-17%Mn alloy. The existing damping alloy with Fe-Mn binary system was limited the use by high production cost, however in case of using scrap iron instead of pure iron although the content of carbon is higher it is possible to be applied wider field especially construction items because the production cost is lower. However, the excellent specific damping capacity is dropped due to the high content of carbon, we developed advanced type of damping alloy included Ti. TiC is formed with added Ti and it holds the specific damping capacity similar to existing damping alloy. The effect of Ti on damping capacity is found to be beneficial in carbon- containing alloy, which is attributed to the depletion of carbon solute due to the formation of TiC.
Damping capacity, Mechanical property, ε-martensite, Ti carbide.