| 摘要 |
PROBLEM TO BE SOLVED: To provide an Fe-Cr-Mn alloy suitable as the substrate structural material for an ultra-precision working machine easily affected by vibration. SOLUTION: The Fe-Cr-Mn alloy having high strength and high damping capacity has a composition containing, by weight, 9 to 15% Cr and 18 to 26% Mn, and the balance Fe, and in which the content of aεmartensitic phase is >=40%. In the method for producing the same Fe-Cr-Mn alloy having high strength and high damping capacity, an Fe-Cr-Mn alloy having a composition containing 9 to 15% Cr and 18 to 26% Mn, and the balance Fe is dissolved and produced, and the dissolved and produced Fe-Cr-Mn alloy is subjected to solution treatment so as to be water-cooled or air-cooled after heating at 1,000 to 1,150 deg.C. As a preferable mode, after the solution treatment, cold working at a rolling ratio of 15 to 80% is further performed.
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