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Effects of Co and epsilon martensite on the damping capacity of high strength Fe-Cr-Mn-Co alloys
- Authors
- Kim, Ick-Soo; Nishimura, Yuhei; Lee, Su Min; Watanabe, Yoshimi; Kim, JooYong; Jung, Hae Ryong; Kang, Chang-Yong; Miyahara, Kazuya
- Issue Date
- Jul-2007
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- damping property; high damping material; epsilon martensite; internal friction; deformation induced martensite
- Citation
- JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.45, no.7, pp.403 - 408
- Volume
- 45
- Number
- 7
- Start Page
- 403
- End Page
- 408
- ISSN
- 1738-8228
- Abstract
- The damping capacity was the most important factor for development of industrial apparatus and precision apparatus. In this research, we developed Fe-12Cr-22Mn alloy having alloying elements and investigated the damping property and strength. Particularly, the effects of the phases of alpha, gamma and epsilon martensite on the damping capacity at room temperature has been investigated. Various fractions of these phases were formed depending on the Co and Si contents and degree. It was found that the combination of 22Mn 4Co-0.4Si and 50% cold rolling formed the largest volume fraction of epsilon martensite phase and showed the highest damping capacity. The other phases of alpha and gamma had actually no effect on the damping capacity. It was also found that 50% clod worked Fe-12Cr-22Mn-Co-0.4Si alloy indicated the largest Vickers hardness.
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Related Researcher
- Kim, Joo yong
- College of Engineering (Department of Materials Science and Engineering)