Damping Capacity in Fe-Mn Binary Alloys.

• Lee Young-Kook

  Department of Metallurgical Engineering, Yonsei University

• Jun Joong-Hwan

  Department of Metallurgical Engineering, Yonsei University

• Choi Chong-Sool

  Department of Metallurgical Engineering, Yonsei University

Abstract

The damping capacities of Fe-Mn binary alloys have been investigated in a wide range of manganese content from 5 to 30 wt%. The damping capacity increases with increasing manganese content, attains a maximum at approximately 17 wt% Mn, and decreases with further manganese content. It is suggested that the damping mechanisms of Fe-Mn alloys containing γ and ε phases are the stress-induced movement of the defects: stacking fault boundary in γ, stacking fault boundary in ε, ε martensite variant boundary, γ/ε interphase boundary. The appearance of the maximum damping capacity at around 17 wt% Mn in Fe-Mn binary system is well explained with the damping mechanisms. The contributions of the damping mechanisms to the overall damping capacities of Fe-17wt%Mn and Fe-21wt%Mn alloys are quantitatively analyzed, which indicates that ε martensite bears the major part of their damping capacities.

Journal

• ISIJ International

  ISIJ International 37 (10), 1023-1030, 1997

  The Iron and Steel Institute of Japan

Keywords

• damping capacity
• Fe-Mn alloys
• austenite
• ε martensite
• γ/ε interphase
• stacking fault
• ε martensite variant

Details

• CRID: 1390001206452191616
• NII Article ID: 10002457284
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.37.1023
• COI: 1:CAS:528:DyaK2sXnslyru7s%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/37/10/37_10_1023/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed