Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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The Effects of Ni Content on Mechanical and Oxidation Resistance Properties of B2-NiAl Intermetallic Compounds

B2-NiAl 금속간 화합물의 기계적 성질 및 내산화성에 미치는 Ni함량의 영향

  • Oh, Chang-Sup (Korea Institute of Science and Technology Information, Reseat Program) ;
  • Han, Chang-Suk (Dept. of Defense Science & Technology, Hoseo University)
  • 오창섭 (한국과학기술정보연구원) ;
  • 한창석 (호서대학교 국방과학기술학과)
  • Received : 2012.11.27
  • Accepted : 2012.12.20
  • Published : 2013.01.30
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Abstract

The B2-ordered NiAl has attracted much attention as one of the candidates as a next generation high temperature material, because it has a high melting temperature, a low specific gravity and an excellent high temperature oxidation resistance. However, the application of NiAl to structural materials needs the improvement of its brittleness at room temperature. The study was carried out on the relation between several properties of NiAl and some variation of Ni content within NiAl phase, which means deviations from the stoichiometric composition. The main results were as follows; (i) Good ductility was obtained at the testing temperature more than 1073 K irrespective of Ni content. (ii) Increasing Ni content offered preferable tensile properties. (iii) Every NiAl with varying Ni contents showed the superior oxidation resistance.

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Cited by

  1. 분말야금법으로 제작한 NiAl합금의 기계적성질 및 형상기억특성 vol.30, pp.5, 2013, https://doi.org/10.3740/mrsk.2020.30.5.231