| 少量硝酸对316L和Hastelloy C合金在循环废酸中腐蚀机理的影响 |
| |
| 引用本文： | 郭金彪,陈阵,王璐,张婷.少量硝酸对316L和Hastelloy C合金在循环废酸中腐蚀机理的影响[J].中国腐蚀与防护学报,2011(2). |
| |
| 作者姓名： | 郭金彪 陈阵 王璐 张婷 |
| |
| 作者单位： | 兰州石化公司研究院; |
| |
| 摘 要： | 利用电化学方法、SEM和EDS研究了少量硝酸对316L和Hastelloy C合金在循环废酸中腐蚀机理的影响。结果表明,循环废酸中的少量硝酸能使温度为80℃的循环废酸具有强氧化性,使铁基奥氏体不锈钢316L在循环废酸中形成致密的钝化膜,使其腐蚀速率大幅度降低;使Hastelloy C合金在循环废酸中的钝化膜发生局部溶解,使其腐蚀速率增加。
|
| 关 键 词： | 循环废酸 腐蚀机理 316L不锈钢 Hastelloy C合金 |
EFFECT OF A SMALL CONTENT OF NITRIC ACID ON CORROSION MECHANISM OF 316L & HASTELLOY C ALLOY IN CIRCULAR DISPOSAL ACID |
| |
| GUO Jinbiao,CHEN Zhen,WANG Lu,ZHANG Ting The Academy of Lanzhou Petrochemical Company Gansu,Lanzhou.EFFECT OF A SMALL CONTENT OF NITRIC ACID ON CORROSION MECHANISM OF 316L & HASTELLOY C ALLOY IN CIRCULAR DISPOSAL ACID[J].Journal of Chinese Society For Corrosion and Protection,2011(2). |
| |
| Authors: | GUO Jinbiao CHEN Zhen WANG Lu ZHANG Ting The Academy of Lanzhou Petrochemical Company Gansu Lanzhou |
| |
| Affiliation: | GUO Jinbiao,CHEN Zhen,WANG Lu,ZHANG Ting The Academy of Lanzhou Petrochemical Company Gansu,Lanzhou 730060 |
| |
| Abstract: | Due to its excellent corrosion resistance to various media,Hastelloy C alloy has been widely used in chemical and other industries.Circular disposal acid is a kind of strongly corrosion solution which containing 72 mass%H_2SO_4 & 0.5 mass%HNO_3,so Hastelloy C alloy was selected as the material of the circular disposal acid pump in aniline unit.However,the pump made of Hastelloy C alloy was corroded seriously in circular disposal acid.The correlative experiments showed that a small content of nitric acid in ... |
| |
| Keywords: | circular disposal acid corrosion mechanism 316L stainless steel Hastelloy C alloy |
| 本文献已被 CNKI 等数据库收录！ |
