Effect of Nb on the Corrosion Resistance of Ni-Cr-Fe-Based Weld Metals
文献类型：期刊论文
| 作者 | Zhang, Xu ; Li, Dianzhong ; Li, Yiyi ; Lu, Shanping |
| 刊名 | CORROSION
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 73期号:6页码:734-741 |
| ISSN号 | 0010-9312 |
| 关键词 | interdendritic corrosion modified Huey test Nb Ni-Cr-Fe alloy pitting weld |
| 通讯作者 | Lu, SP (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China. ; Lu, SP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China. |
| 中文摘要 | The localized corrosion behaviors (intergranular corrosion, pitting, and interdendritic corrosion) of Ni-Cr-Fe-based weld metals with different niobium concentrations were investigated both in the as-welded and heat-treated conditions using the modified Huey test (ASTM A262-2010). Results indicated that Nb could reduce the intergranular corrosion susceptibility of Ni-Cr-Fe-based weld metals by preventing Cr carbides from precipitating at grain boundaries. However, the degree of pitting corrosion became more severe with the increase of Nb. The Laves phase could be corroded easily in the oxidizing environment, which increased the pitting corrosion sensitivity of weld metals. Interdendritic corrosion became the main corrosion type of weld metals that were heat treated at 620 degrees C for 29 h. The depletions of elements Cr and Ni occurred in the interdendritic region, which resulted in the interdendritic corrosion of the heat-treated weld metals. With increasing Nb, the degree of Cr and Ni depletions became higher and the interdendritic corrosion sensitivity of the heat-treated weld metals increased. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 资助信息 | Natural Science Foundation of China (NSFC) [51474203]; Chinese Academy of Sciences [KGZD-EW-XXX-2] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78105]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Xu,Li, Dianzhong,Li, Yiyi,et al. Effect of Nb on the Corrosion Resistance of Ni-Cr-Fe-Based Weld Metals[J]. CORROSION,2017,73(6):734-741. |
| APA | Zhang, Xu,Li, Dianzhong,Li, Yiyi,&Lu, Shanping.(2017).Effect of Nb on the Corrosion Resistance of Ni-Cr-Fe-Based Weld Metals.CORROSION,73(6),734-741. |
| MLA | Zhang, Xu,et al."Effect of Nb on the Corrosion Resistance of Ni-Cr-Fe-Based Weld Metals".CORROSION 73.6(2017):734-741. |
入库方式： OAI收割
来源：金属研究所
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