Micro-Vickers Hardness of Intermetallic Compounds in the Zn-rich Portion of Zn–Fe Binary System

• Han Kwangsik

  Department of Materials Science, Tohoku University

• Lee Inho

  Department of Materials Science, Tohoku University

• Ohnuma Ikuo

  Computational Materials Science Unit, National Institute for Materials Science (NIMS)

• Okuda Kaneharu

  Steel Research Laboratory, JFE Steel Corporation

• Kainuma Ryosuke

  Department of Materials Science, Tohoku University

Abstract

Annealing temperature and composition dependences of hardness for the intermetallic compound phases, especially Γ-Fe₄Zn₉, δ_1p-Fe₁₃Zn₁₂₆ and δ_1k-FeZn₇, which are obtained in Zn-rich portion of Fe–Zn alloys, were investigated by the micro-Vickers hardness test. Although the hardness of the Γ and δ_1k phases only slightly decreases with increasing quenching temperature, it shows obvious composition dependences. However, the hardness of the disordered δ_1p phase is basically lower than that of the ordered δ_1k phase, which is hardly affected by composition change. The hardness of all the Zn-rich compound phases quenched from 500°C (or 550°C) are evaluated and compared.

Journal

• ISIJ International

  ISIJ International 58 (9), 1578-1583, 2018-09-15

  The Iron and Steel Institute of Japan

Keywords

• hot-dip galvanizing
• vickers hardness
• intermetallic compounds
• annealing temperature and composition dependences

Details

• CRID: 1390845713001414016
• NII Article ID: 130007484967
• DOI: 10.2355/isijinternational.isijint-2018-111
• ISSN: 13475460
• ISSN: 09151559
• Web Site: https://www.jstage.jst.go.jp/article/isijinternational/58/9/58_ISIJINT-2018-111/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed