CORROSION OF NICKEL-BASED ALLOYS IN ACIDIFIED LITHIUM-CHLORIDE SOLUTIONS

被引：5
|
作者：
PAWEL, SJ
机构：
[1] Oak Ridge Y-12 Plant, Oak Ridge, TN
来源：
CORROSION | 1993年 / 49卷 / 11期
关键词：
ALLOY; 20MO6; ALLOY B-2; ALLOY C-22; ALLOY C-276; ALLOY G-30; HYDROCHLORIC ACID; IMMERSION; LITHIUM CHLORIDE; NICKEL-BASED ALLOYS; PH; TEMPERATURE;
D O I：
10.5006/1.3316019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Immersion tests were performed on nickel (Ni)-based alloys in acidified 2 M lithium chloride (LiCl) solutions as a function of temperature and pH. Results indicated alloy C-22 (UNS N06022) and alloy C-276 (UNS N10276) were very resistant to corrosion in this environment to pH 1 at 95-degrees-C. Other alloys revealed extreme corrosion at low pH (alloy G-30 [UNS N06030] and alloy 20Mo6 [UNS N08026]) or accelerated corrosion due to solution aeration (alloy B-2 [UNS N10665]) and were not recommended for the process described. Failures of C-276 in similar service environments were attributed to poor control of process pH, with values less-than-or-equal-to 0.5 leading to extreme general corrosion.
引用
收藏
页码：929 / 933
页数：5
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