The effect of temperature on mechanical properties of oxide scales formed on a carbon steel in a simulated municipal solid waste incineration environment

被引:13
|
作者
Morales, M. [1 ]
Chimenos, J. M. [1 ]
Espiell, F. [1 ]
Segarra, M. [1 ]
机构
[1] Univ Barcelona, Dept Ciencia Mat & Engn Met, Ctr DIOPMA, E-08028 Barcelona, Spain
来源
关键词
Mechanical properties; Carbon steel; Chlorides; High temperature corrosion; Municipal solid waste incineration; Instrumented indentation technique; POWER-GENERATING SYSTEMS; BOILER TUBES; CORROSION; DEPOSITS; BEHAVIOR; HARDNESS; MODELS; IRON;
D O I
10.1016/j.surfcoat.2013.10.035
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effect of exposure temperature on the mechanical properties of scales in a carbon steel was investigated in a simulated waste incineration environment consisting of a gas mixture (N-2-O-2-H2O-HCI) with samples immersed in a salt (K2SO4-Na2SO4-ZnCl2-KCI) in the temperature range of 573 to 773 K. The microstructure, corrosion rate, elastic modulus (E) and hardness (H) of scales were determined by SEM, XRD, descaled weight loss and instrumented indentation technique. The results indicated that both the E and H decreased as a negative exponential function of temperature, thus obtaining a low mechanical and microstructural integrity of scales with high defect density between 673 and 773 K. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:51 / 57
页数:7
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