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材料导报  2020, Vol. 34 Issue (Z1): 385-389    
  金属与金属基复合材料 |
锆在硫酸提浓工艺中的腐蚀研究
王鹏, 张卫刚, 孙旭东
西部金属材料股份有限公司,西安 710201
Study on Corrosion of Zirconium in Sulfuric Acid Concentration Process
WANG Peng, ZHANG Weigang, SUN Xudong
Western Metal Materials Co., Ltd., Xi'an 710201, China
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摘要 以目前国内废硫酸真空提浓工艺中锆材耐腐蚀情况为研究对象,通过多种环境和试验方法对锆及预膜锆在硫酸浓缩中的腐蚀行为进行研究。首先在实验室采用观察法及重量法对锆合金在不同浓度、温度工况下腐蚀情况进行研究,进而分析温度、浓度对锆合金腐蚀的影响,讨论废酸浓缩中锆的适用范围;然后使用电化学方法,讨论锆合金和预膜锆在100 ℃、70%(质量分数)硫酸工况下的电化学行为,测量出极化曲线,通过对极化曲线分析测量出两种试样的腐蚀速率差。本工作为废硫酸提浓工艺提供了选材支持,同时为蒸发器安全服役提供参考。
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王鹏
张卫刚
孙旭东
关键词:  锆合金  硫酸  腐蚀  极化曲线    
Abstract: Based on the current domestic waste sulfuric acid concentration in the process of zirconium corrosion as the research object, the corrosion behavior of zirconium and premembrane zirconium in sulfuric acid concentration was studied by various experimental methods.Firstly, the corrosion of zirconium alloy at different temperature and different concentration was studied by observation method and gravimetric method in laboratory,and discuss the applicable scope of waste acid concentration in zirconium.Electrochemical behavior of zirconium alloy and premembrane zirconium under 100 ℃ and 70%(mass fraction) sulfuric acid was discussed. The polarization curves were measured. The corrosion rate difference between the two samples was measured by analysis of the polarization curves. This work provides material selection support for waste sulfuric acid concentration process, and provides reference for safety service of evaporator.
Key words:  zirconium alloy    sulfuric acid    corrosion    polarization curve
                    发布日期:  2020-07-01
ZTFLH:  TG174.2  
基金资助: 陕西省科技创新团队项目(2019TD-037)
作者简介:  王鹏,高级工程师,主要从事稀有金属材料加工以及先进金属材料应用研究;张卫刚,高级工程师,主要从事稀有金属材料加工以及先进金属材料应用研究。
引用本文:    
王鹏, 张卫刚, 孙旭东. 锆在硫酸提浓工艺中的腐蚀研究[J]. 材料导报, 2020, 34(Z1): 385-389.
WANG Peng, ZHANG Weigang, SUN Xudong. Study on Corrosion of Zirconium in Sulfuric Acid Concentration Process. Materials Reports, 2020, 34(Z1): 385-389.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2020/V34/IZ1/385
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