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Title: A comparison of the high-temperature oxidation of 17Cr-2Ni and 18Cr-8Ni austenitic stainless steels at 973 K

Abstract

The oxidation behavior in air at 973 K of the austenitic stainless steels 18Cr-8Ni and 17Cr-2.5Ni-10.5Mn-2Cu-0.17N (low-nickel content), was studied in a thermobalance. The steels were heated from room temperature up to 973 K at 10 K min{sup {minus}1}, oxidized for 80 hr and then cooled to room temperature at 80 K min{sup {minus}1}. The two steels had the same weight gains, 0.18 mg cm{sup {minus}2}, which is equivalent to oxidation layers about 1.15 {micro}m theoretical thickness. In both cases, the general shapes of the {Delta}W S{sup {minus}1} (mg cm{sup {minus}2}) curves vs. t (hours) were parabolic, but X-ray diffraction of the oxidized surfaces, surface and cross-section optical microscopy and SEM observations and EDS microanalysis show important differences between them.

Authors:
 [1]; ;  [2]
  1. Centro de Investigacion y Ensayos, Cadiz (Spain)
  2. Univ. Complutense, Madrid (Spain). Dept. de Ciencia de Materiales
Publication Date:
OSTI Identifier:
642112
Resource Type:
Journal Article
Journal Name:
Oxidation of Metals
Additional Journal Information:
Journal Volume: 49; Journal Issue: 3-4; Other Information: PBD: Apr 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; OXIDATION; STAINLESS STEELS; CHEMICAL COMPOSITION; REACTION KINETICS; PROTECTIVE COATINGS; TEMPERATURE RANGE 0400-1000 K; AIR; EXPERIMENTAL DATA

Citation Formats

Botella, J, Merino, C, and Otero, E. A comparison of the high-temperature oxidation of 17Cr-2Ni and 18Cr-8Ni austenitic stainless steels at 973 K. United States: N. p., 1998. Web. doi:10.1023/A:1018830424480.
Botella, J, Merino, C, & Otero, E. A comparison of the high-temperature oxidation of 17Cr-2Ni and 18Cr-8Ni austenitic stainless steels at 973 K. United States. doi:10.1023/A:1018830424480.
Botella, J, Merino, C, and Otero, E. Wed . "A comparison of the high-temperature oxidation of 17Cr-2Ni and 18Cr-8Ni austenitic stainless steels at 973 K". United States. doi:10.1023/A:1018830424480.
@article{osti_642112,
title = {A comparison of the high-temperature oxidation of 17Cr-2Ni and 18Cr-8Ni austenitic stainless steels at 973 K},
author = {Botella, J and Merino, C and Otero, E},
abstractNote = {The oxidation behavior in air at 973 K of the austenitic stainless steels 18Cr-8Ni and 17Cr-2.5Ni-10.5Mn-2Cu-0.17N (low-nickel content), was studied in a thermobalance. The steels were heated from room temperature up to 973 K at 10 K min{sup {minus}1}, oxidized for 80 hr and then cooled to room temperature at 80 K min{sup {minus}1}. The two steels had the same weight gains, 0.18 mg cm{sup {minus}2}, which is equivalent to oxidation layers about 1.15 {micro}m theoretical thickness. In both cases, the general shapes of the {Delta}W S{sup {minus}1} (mg cm{sup {minus}2}) curves vs. t (hours) were parabolic, but X-ray diffraction of the oxidized surfaces, surface and cross-section optical microscopy and SEM observations and EDS microanalysis show important differences between them.},
doi = {10.1023/A:1018830424480},
journal = {Oxidation of Metals},
number = 3-4,
volume = 49,
place = {United States},
year = {1998},
month = {4}
}