National Taiwan Ocean University Institutional Repository:Item 987654321/50803
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 28611/40652
Visitors : 754552      Online Users : 49
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item:

Title: The corrosion behavior of Fe-Al alloys in H2/H2S/H2O atmospheres at 700–900°C
Authors: W. Kai
R. T. Huang
Contributors: 國立臺灣海洋大學:材料工程研究所
Keywords: corrosion
Fe-Al alloys
Date: 1997-08
Issue Date: 2018-10-25T02:45:29Z
Publisher: Oxidation of Metals
Abstract: Abstract: The corrosion behavior of five Fe-Al binary alloys containing up to 40 at. % Al was studied over the temperature range of 700–900°C in a H2/H2S/H2O mixture with varying sulfur partial pressures of 10−7−10−5 atm. and oxygen partial pressures of 10−24−10−2° atm. The corrosion kinetics followed the parabolic rate law in all cases, regardless of temperature and alloy composition. The parabolic rate constants decreased with increasing Al content. The scales formed on Fe-5 and −10 at.% Al were duplex, consisting of an outer layer of iron sulfide (FeS or Fe1−xS) and an inner complex scale of FeAl2S4 and FeS. Alloys having intermediate Al contents (Fe-18 and −28 at.% Al) formed scales that consisted of mostly iron sulfide and Al2O3 as well as minor a amount of FeAl2S4. The amount of Al2O3 increased with increasing Al content. The Fe 40 at.% Al formed only Al2O3 at 700°C, while most Al2O3 and some FeS were detected at T≥800°C. The formation of Al2O3 was responsible for the reduction of the corrosion rates.
Relation: 48(1-2) pp.59-86
Appears in Collections:[Institute of Materials Engineering] Periodical Articles

Files in This Item:

File Description SizeFormat

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback