Quantitative Prediction of Voids Formation in a Growing Nickel Oxide Scale at 1373 K

• Akiba Kojiro

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Ueda Mitsutoshi

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Kawamura Kenichi

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Maruyama Toshio

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

Abstract

Voids which form in oxide scales strongly influence the mechanical properties of the scale and the adherence between the metal substrate and the scale. The purpose of this study is to demonstrate a method for quantitative estimation of voids formation in NiO scale, and compare the microstructure of the scale formed on nickel at 1373 K with the estimation.<BR>Calculations of ion fluxes and their divergence in NiO scales can predict the annihilation of the oxides which mostly occurs in the vicinity of the metal/oxide interface and the volume fraction of the voids. These predictions are in good agreement with the observed morphology of NiO scale obtained in high temperature oxidation of nickel at 1373 K.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 48 (10), 2753-2761, 2007

  The Japan Institute of Metals and Materials

Keywords

• nickel oxide scale
• voids formation
• chemical potential distribution
• divergence of ion flux

Details

• CRID: 1390001204249908224
• NII Article ID: 10019956461
• NII Article ID: 130004453383
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mer2007122
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 8931794
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8931794
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/48/10/48_MER2007122/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed