| 液固流动相中不锈钢耐颗粒冲刷腐蚀性能研究 |
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| 引用本文： | 丁一刚,王慧龙,郭兴蓬,郑家.液固流动相中不锈钢耐颗粒冲刷腐蚀性能研究[J].华中科技大学学报(自然科学版),2002,30(5):114-116. |
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| 作者姓名： | 丁一刚 王慧龙 郭兴蓬 郑家 |
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| 作者单位： | 华中科技大学化学系 |
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| 基金项目： | 中国石油天然气集团公司CNPC材料与环境行为重点实验室资助项目 (ZYT 0 0 0 9) |
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| 摘 要： | 采用自制的旋转冲刷腐蚀失重装置，研究了湿法磷酸中固体颗粒的性质，如固含量，粒径等环境参数对不锈钢316L和904L冲刷腐蚀速率的影响，并在扫描电镜下观察了不锈钢腐蚀的形貌，试验结果表明，CaSO4结晶颗粒固含量质量分数由10％增加到50％时，冲刷腐蚀速率有所增大，316L不锈钢主要以腐蚀为主，且表现为晶间腐蚀，当浆体中含有SiO2固体颗粒时，液相腐蚀性得到降低，虽然不锈钢904L耐液相腐蚀性能优良，但耐冲刷（磨损）性能较差，尤其当SiO2粒径增大时，冲刷腐蚀速率明显增大。
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| 关 键 词： | 不锈钢 湿法磷酸 冲刷腐蚀 固体颗粒 |
| 文章编号： | 1671-4512(2002)05-0114-03 |
| 修稿时间： | 2001年9月6日 |
Study on erosive-corrosive wear of stainless steels in liquid-particles phase |
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| Ding Yigang Wang Huilong Guo Xingpeng Zheng Jiashen Doctoral Candidate, Dept. of Chemistry, Huazhong Univ. of Sci. and Tech.,Wuhan ,China..Study on erosive-corrosive wear of stainless steels in liquid-particles phase[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(5):114-116. |
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| Authors: | Ding Yigang Wang Huilong Guo Xingpeng Zheng Jiashen Doctoral Candidate Dept of Chemistry Huazhong Univ of Sci and Tech Wuhan China |
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| Institution: | Ding Yigang Wang Huilong Guo Xingpeng Zheng Jiashen Doctoral Candidate, Dept. of Chemistry, Huazhong Univ. of Sci. and Tech.,Wuhan 430074,China. |
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| Abstract: | The influence of SiO 2 particles on erosive corrosive wear behavior of 316?L and 904?L stainless steel with addition of different content and size of SiO 2 particles in a slurry of wet process phosphoric acid are studied. Scanning electron microscopy of the eroded surface has also been performed. Erosion corrosion rate of 316L stainless steel increases when slurry contained CaSO 4 particles reaches by 10?% to 50?%. Metal loss of 316?L stainless steel is dominated by corrosion, and eroded surface shows intercrystalline corrosion. Though 904?L stainless steel shows better corrosion resistance than 316?L, erosion corrosion rate of 904?L stainless steel increases significantly with the size of SiO 2 particles. Metal loss of 904?L stainless steel is dominated by erosion. |
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| Keywords: | stainless steel wet process phosphoric acid erosion corrosion wear solid particles |
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