The intergranular oxidation susceptibility of thermally-treated Alloy 600

被引：45
作者：
Bertali, G. [1 ]
Scenini, F. [1 ]
Burke, M. G. [1 ]
机构：
[1] Univ Manchester, Mat Performance Ctr, Manchester, Lancs, England
来源：
CORROSION SCIENCE | 2017年 / 114卷
基金：
英国工程与自然科学研究理事会;
关键词：
Alloy; 600; Preferential intergranular oxidation; Carbide decomposition; TEM and STEM; STRESS-CORROSION CRACKING; HIGH-TEMPERATURE WATER; INTERNAL OXIDATION; GRAIN-BOUNDARIES; STEAM; CARBIDES; IGSCC; 304-STAINLESS-STEEL; MICROSTRUCTURE; MECHANISM;
D O I：
10.1016/j.corsci.2016.11.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation behaviour of thermally-treated Alloy 600 was studied in hydrogenated steam at 480 C, an environment used to accelerate the oxidation reactions observed under pressurized water reactors conditions. Focused ion beam (FIB) and analytical transmission electron microscopy (ATEM) provided direct evidence of localized intergranular carbide decomposition and the formation of an intergranular Cr-rich oxide embryo. These results are in terms of the early stages of preferential intergranular oxidation and the role of carbides on grain boundary migration, carbide decomposition, and the effect of local carbon enrichments in the matrix. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：112 / 122
页数：11
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