| 改善Super304H不锈钢抗晶间腐蚀性能的途径 |
| |
| 引用本文： | 钟力强,朱伟恒,高岩.改善Super304H不锈钢抗晶间腐蚀性能的途径[J].广东电力,2014(3):34-39. |
| |
| 作者姓名： | 钟力强 朱伟恒 高岩 |
| |
| 作者单位： | [1] 广东电网公司电力科学研究院,广东 广州510080 [2] 华南理工大学 材料科学与工程学院,广东 广州510640 |
| |
| 基金项目： | 中国南方电网有限责任公司科技项目（K-GD2012-385） |
| |
| 摘 要： | 首先从成分、结构特点、与贫Cr区的关系,以及界面、合金元素和应力状态对析出的影响等方面阐述了奥氏体不锈钢中M23C6的特性;然后以超超临界压力锅炉的过热器管和再热器管常用的奥氏体Super304H不锈钢为例,结合Super304H不锈钢的成分和特点,提出通过调整晶界工程、优化高温软化工艺、加速M23C6形成和增加去敏化工艺等方法来改善Super304H钢高晶间腐蚀的敏感性;最后指出研究Super304H不锈钢去敏化过程的规律是今后的研究方向。
|
| 关 键 词： | 奥氏体不锈钢 SuperH钢 MC 晶间腐蚀 |
Approach to Improve Intergranular Corrosion Resistance Performance of Super304H Stainless Steel |
| |
| ZHONG Liqiang,ZHU Weiheng,GAO Yan.Approach to Improve Intergranular Corrosion Resistance Performance of Super304H Stainless Steel[J].Guangdong Electric Power,2014(3):34-39. |
| |
| Authors: | ZHONG Liqiang ZHU Weiheng GAO Yan |
| |
| Affiliation: | ZHONG Liqiang, ZHU Weiheng, GAO Yan |
| |
| Abstract: | This paper firstly states characteristics of M23 C6 in Austenitic stainless steel in aspects of ingredients,structural features,relationship between Cr-depleted zone and impacts of interface,alloying elements and stress states on precipitati-on.Taking superheater pipe of the supercritical pressure boiler and Austenitic Super403H stainless steel often used for rehea-ter pipe as examples and combining ingredients and characteristics of Super304 H stainless steel,it proposes to improve sensi-tivity of intergranular corrosion of Super304H by means of adjusting grain boundary engineering,optimizing high tempera-ture softening technics,speeding up formation of M23 C6 and increasing sensitizing technics.At last,it points out that stud-ying on laws of sensitizing process of Super304H stainless steel is a future research direction . |
| |
| Keywords: | Austenitic stainless steel Super304H steel intergranular corrosion |
| 本文献已被 CNKI 维普 等数据库收录！ |
