Effect of Chromium Content on the Oxidation Behavior of Ni-Cr Model Alloys in Superheated Steam

Fethi Hamdani, Hiroshi Abe, Benoit Ter-Ovanessian, Bernard Normand, Yutaka Watanabe

研究成果: Article

11 引用 (Scopus)

抜粋

The present study investigated the oxidation behavior of Ni-xCr model alloys (14 ≤ x ≤ 30 wt pct) in steam at 973 K (700 °C), with particular emphasis on the influence of chromium content. Mirror polishing was employed to reduce the hardened layer, thereby avoiding the synergetic effect with dislocations in the subsurface. To elucidate the oxidation behavior, weight gain measurements and the meticulous characterization of the oxide scale were performed. The optimal Cr content (24 wt pct) corresponded to an oxidation rate slower than the parabolic rate due to the growth of a protective Cr oxide layer. Increasing the Cr content above the optimal amount led to the degradation of oxidation resistance.

元の言語English
ページ(範囲)2285-2293
ページ数9
ジャーナルMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
46
発行部数5
DOI
出版物ステータスPublished - 2015 1 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

フィンガープリント Effect of Chromium Content on the Oxidation Behavior of Ni-Cr Model Alloys in Superheated Steam' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用