Damping Capacity in Fe-27Mn-3.5Si Alloy.

DOI Web Site 被引用文献3件
  • Jee K. K.
    Division of Metals, Korea Institute of Science and Technology
  • Ito K.
    Department of Materials Science, The University of Tokyo
  • Shin M. C.
    Division of Metals, Korea Institute of Science and Technology

抄録

Damping capacity in an Fe-27Mn-3.5Si alloy has been greatly improved with significant anisotropy by cold-rolling. The alloy, consisting of stacking faults and thermal ε martensite before rolling, shows poor damping capacity at low strain amplitude and strong amplitude dependence. The increase and anisotropy in the damping capacity are attributed to ε martensite induced by cold-rolling.<br> The alloy is found to adjust itself to the deformation by forming ε martensite which has a preferred orientation of (1013)ε [3032]ε. The mechanism of formation of the preferred orientation can be explained by the shear model in γ→ε transformation. <br>With the result of microstructure and preferred orientation, a damping mechanism by ε martensite and its anisotropy is discussed.

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