Effect of Niobium Addition on the High-Temperature Oxidation Behavior of 22Cr25NiWCoCu Stainless Steel in Air

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
View graph of relations

Author(s)

  • Sheng-Yao Huang
  • Wen-Ta Tsai
  • Yeong-Tsuen Pan
  • Jui-Chao Kuo
  • Hsien-Wei Chen
  • And 1 others
  • Dong-Yih Lin

Detail(s)

Original languageEnglish
Article number975
Journal / PublicationMetals
Volume9
Issue number9
Online published3 Sep 2019
Publication statusPublished - Sep 2019

Link(s)

Abstract

The oxidation behavior of 22Cr25NiWCoCu stainless steel with 0–0.86 wt.% Nb addition was investigated at 900 °C in air. With an increase in Nb addition, the volume fraction and average particle size of Nb (C, N) increased, but the grain size decreased. The results of grazing incidence X-ray diffraction indicated that the steels with Nb additions promoted Cr2O3 formation. After 10–100 h of oxidation, Cr depletion occurred at the region with Nb (C, N) precipitates because of its high Cr consumption rate, leading to Fe oxide generation. Finally, after 100 h of oxidation, the outer layer of Fe2O3 and the inner layer of (Cr, Fe, Mn)3O4 were formed.

Research Area(s)

  • Austenitic stainless steel, EBSD, Nb (C,N), Nodule, Oxidation

Citation Format(s)

Effect of Niobium Addition on the High-Temperature Oxidation Behavior of 22Cr25NiWCoCu Stainless Steel in Air. / Huang, Sheng-Yao; Tsai, Wen-Ta; Pan, Yeong-Tsuen; Kuo, Jui-Chao; Chen, Hsien-Wei; Lin, Dong-Yih.

In: Metals, Vol. 9, No. 9, 975, 09.2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

Download Statistics

No data available