| Intergranular attack and intergranular stress corrosion cracking of Alloy 690 TT in high temperature lead-containing caustic solution |
| Y. Hu; J. Wang; W. Ke; E. H. Han
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| 2012
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| 发表期刊 | Materials and Corrosion-Werkstoffe Und Korrosion
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| ISSN | 0947-5117
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| 卷号 | 63期号:3页码:238-246 |
| 摘要 | Immersion tests were carried out in high temperature lead-containing caustic solution in a static autoclave. The results showed samples with three surface statuses of Alloy 690 TT suffered from intergranular attack (IGA) after immersion in 10% sodium hydroxide (wt%) with 10g/L of litharge at 330 degrees C for different times. With the increasing immersion time, IGA became more severe. Wire cutting samples had the most serious IGA, ground samples followed and electro-polished samples had the slightest IGA. IGA had developed into IGSCC only in wire cutting samples due to the existence of residual stress. All the specimens at different immersion time tests lost weight. To the same cold-work samples, with the increasing immersion time, the weight loss increased. No IGA was found in 10% sodium hydroxide solution at 330 degrees C after 720h immersion. When adding 100ppm litharge into 10% sodium hydroxide solution, slight IGA was produced. IGA became more serious and the weight loss of the specimens with three surface statuses increased with the increase of lead concentration. As the results of 1% sodium hydroxide solution containing 10g/L litharge and 4% sodium hydroxide solution containing 10?g/L litharge at 330 degrees C for 720h immersion tests, only slight IGA occurred and the weight of samples with three surface statuses increased. The pH value played an important role in lead-induced corrosion in caustic solution. |
| 部门归属 | [hu, y.; wang, j.; ke, w.; han, e-h] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;wang, j (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;jiqwang@imr.ac.cn
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| 关键词 | Alloy 690 Tt
Intergranular Attack
Intergranular Stress Corrosion
Cracking
Oxide Film
Pressurized-water Reactors
Quantitative Assessment
Secondary-side
Heat-treatment
Base Alloys
Submodes
Environments
Chemistry
Films
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/60004
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
Y. Hu,J. Wang,W. Ke,et al. Intergranular attack and intergranular stress corrosion cracking of Alloy 690 TT in high temperature lead-containing caustic solution[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2012,63(3):238-246.
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| APA |
Y. Hu,J. Wang,W. Ke,&E. H. Han.(2012).Intergranular attack and intergranular stress corrosion cracking of Alloy 690 TT in high temperature lead-containing caustic solution.Materials and Corrosion-Werkstoffe Und Korrosion,63(3),238-246.
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| MLA |
Y. Hu,et al."Intergranular attack and intergranular stress corrosion cracking of Alloy 690 TT in high temperature lead-containing caustic solution".Materials and Corrosion-Werkstoffe Und Korrosion 63.3(2012):238-246.
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