Transformation Behavior and Damping Capacity in Fe-17%Mn-X%C-Y%Ti Alloy.

• Baik Seung-Han

  Research Institute of Measuring Technology, Woojin OSK Corporation

• Kim Jung-Chul

  Research Institute of Measuring Technology, Woojin OSK Corporation

• Jee Kwang-Koo

  Division of Metals, Korea Institute of Science and Technology

• Shin Myung-Chul

  Division of Metals, Korea Institute of Science and Technology

• Choi Chong-Sool

  Department of Metallurgical Engineering, Yonsei University

Abstract

Effect of carbon and Ti on γ↔ε martensitic transformation behavior and damping capacity is investigated in an Fe-17Mn alloy. The suppressive force of carbon against γ↔ε transformation increase linearly with an increase in its content, lowering Ms temperature and volume fraction of ε martensite. Carbon deteriorates damping capacity by reducing the area of γ/ε boundaries and mobility of the boundaries contributing to anelastic deformation. The reduction in the mobility of the boundaries is accelerated when carbon-containing alloy is aged at higher temperatures than room temperature. The effect of Ti on damping capacity is found to be beneficial in carbon-containing alloy, which is attributed to the depletion of carbon solute due to the formation of TiC.

Journal

• ISIJ International

  ISIJ International 37 (5), 519-522, 1997

  The Iron and Steel Institute of Japan

Keywords

• specific damping capacity
• γ/ε boundary
• mobility of the boundaries
• transformation temperature
• Fe-Mn-C alloy
• effect of Ti addition

Details

• CRID: 1390282681429548672
• NII Article ID: 10002455810
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.37.519
• COI: 1:CAS:528:DyaK2sXktVOmtro%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/37/5/37_5_519/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed