Grain Boundary Precipitation in Fe-30Mn-9Al-5Cr-0.7C Alloy

• Tuan Yi Hsuan

  Department of Materials Science and Engineering, National Chiao Tung University

• Lin Chih Lung

  Department of Materials Science and Engineering, National Chiao Tung University

• Chao Chuen Guang

  Department of Materials Science and Engineering, National Chiao Tung University

• Liu Tzeng Feng

  Department of Materials Science and Engineering, National Chiao Tung University

Abstract

The as-quenched microstructure of the Fe-30%Mn-9%Al-5%Cr-0.7%C (in mass%) alloy was single-phase austenite. When the as-quenched alloy was aged at 550°C–750°C, fine (Fe,Mn)₃AlC carbides were formed within the austenite matrix. In addition, as the aging temperature increased, a M₇C₃ carbide + D0₃→M₇C₃ carbide + B2→M₇C₃ carbide + α (ferrite) phase transition had occurred on the grain boundaries. This grain boundary precipitation behavior has never before been observed in FeMnAlC and FeMnAlCrC alloy systems.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (7), 1589-1593, 2008

  The Japan Institute of Metals and Materials

Keywords

• transmission electron microscopy
• carbides
• ordering
• austenitic iron aluminum manganese chromium carbon alloy

Details

• CRID: 1390001204249184256
• NII Article ID: 10021148281
• NII Article ID: 130004454039
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mra2008060
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 9555647
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9555647
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/7/49_MRA2008060/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed