Thermal stability of the CoWO4 layer formed on ferritic stainless steel

Lu Gan, Toshiyuki Nishimura, Saad Ahmed Sheikh, Isao Saeki, Hideyuki Murakami*

*この研究の対応する著者

研究成果査読

2 被引用数 (Scopus)

抄録

This study focuses on the temperature capability of CoWO4 as the oxidation protection layer of ferritic stainless steel (FSS). The thermogravimetric-differential thermal analysis revealed that until CoWO4 started to melt at 1297 °C, little mass change was observed. In addition, the coefficient of thermal expansion of CoWO4 was 11.5 ± 0.2 (×10−6 K−1), which was similar to that of FSS, evidencing its good thermal stability and compatibility for the protection of FSS. The oxidation test of the Co–W coated specimens at 700 °C – 1000 °C in air confirmed effectiveness of the CoWO4 layer at T ≤ 850 °C.

本文言語English
論文番号109037
ジャーナルCorrosion Science
176
DOI
出版ステータスPublished - 2020 11

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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