Fe-26Mn-4Co-2Al 합금의 감쇠능에 미치는 가공 유기 마르텐사이트의 영향

정규성; 강창룡; Kyu-Seong Jeong; Chang-Yong Kang

Korean Journal of Materials Research, Vol.26, No.9, 493-497, September, 2016

DOI10.3740/MRSK.2016.26.9.493 Export Citation

Fe-26Mn-4Co-2Al 합금의 감쇠능에 미치는 가공 유기 마르텐사이트의 영향

Effect of Deformation Induced Martensite on the Damping Capacity of Fe-26Mn-4Co-2Al Alloy

정규성, 강창룡^†

부경대학교 금속공학과

Kyu-Seong Jeong, and Chang-Yong Kang^†

Department of Metallurgical Engineering, Pukyong National University, Busan 48547, Republic of Korea

E-mail:

This study was carried out to investigate the effect of deformation induced martensite on the damping capacity of Fe-26Mn-4Co-2Al damping alloy. α‘ and ε-martensite were formed by cold working, and; deformation induced martensite was formed with according to the specific direction and the surface relief. With an increasing degree of cold rolling, the volume fraction of α‘-martensite increased rapidly, while the volume fraction of ε-martensite decreased after rising to a maximum value at a specific level of cold rolling. Damping capacity was increased, and then decreased with an increasing of the degree of cold rolling. Damping capacity was influenced greatly by the volume fraction of ε-martensite formed by cold working, but the effect of the volume fraction of α‘-martensite have a actually on effect on the damping capacity.

Keywords:damping capacity;cold working;volume fraction;internal friction;deformation induced martensite

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[1] Chiba N, ISIJ., 71, 1742 (1985)

[2] Lee KK, Jang WY, Baik SH, Shin MC, Choi CS, Scr. Mater., 37, 943 (1997)

[3] Kwoon MG, Kang CY, Korean J. Mater. Res., 24(1), 1 (2014)

[4] Kim YH, Lee SH, Kim SG, Kang CY, Korean J. Mater. Res., 25(1), 9 (2015)

[5] Panossian HV, ASME., 114, 101 (1992)

[6] Sahashi H, Kim IS, Kang CY, Igata N, Miyahara K, Kinzoku., 74, 16 (2004)

[7] Birchon D, Bromley DE, Healey D, Met. Sci. J., 2, 41 (1968)

[8] Lee YK, Jun JH, Choi CS, ISIJ., 37, 1023 (1997)

[9] Okada H, Sahashi H, Kim IS, Kang CY, Igata N, Miyahara K, Mater. Sci., 370, 519 (2004)

[10] Kang CY, Eom JH, Kim HJ, Korean J. Met. Mater., 45, 157 (2007)

[11] Miller RL, Trans. ASM., 57, 892 (1964)

[12] Bogers AJ, Rurgers WG, Acta Metall., 12, 255 (1964)

[13] Venables J, Philos. Mag. B-Phys. Condens. Matter Stat. Mech. Electron. Opt. Magn. Prop., 7, 35 (1961)

[14] Kang CY, Sung JH, J. Korean Soc. Heat Treat., 4, 44 (1991)

[15] Jun JH, Lee YK, Choi CS, Korean J. Met. Mater., 33, 1600 (1995)

[16] Son DU, Kim JH, Kim IS, Miyahara K, Sung JH, Kang CY, Korean J. Met. Mater., 42, 621 (2004)