微观组织结构调控提高纯锆在多种环境下的耐腐蚀性能
Corrosion Resistance Enhancement of Pure Zirconium in Various Environments via Microstructure Tailoring
夏超群 1李可 1崔紫尧 2宋天朔 1吴鑫雨 1刘曙光 3邹显睿 1张士良 1杨泰 1李强1
作者信息
- 1. 河北工业大学 材料科学与工程学院 天津市材料层状复合与界面控制技术重点实验室,天津 300401
- 2. 河北工业大学工业技术研究院,天津 300401
- 3. 北京机械工业自动化研究所有限公司 电气物理设备与应用工程技术中心,北京 100120
- 折叠
摘要
研究了不同晶粒尺寸的纯锆(Zr)在酸、碱、盐环境中的腐蚀性能.采用光学显微镜、X射线衍射仪和电子背散射衍射探针对纯Zr的微观结构进行观察.采用电化学腐蚀试验和浸泡试验分析纯锆的耐腐蚀性能.结果表明:800 ℃退火不同时间可获得尺寸为4～32µm的纯Zr,晶粒尺寸与时间的关系为D3-D03=3.35t.电化学腐蚀和浸泡腐蚀试验表明,晶粒尺寸约为24μm的纯Zr(800 ℃退火20 h)具有最佳的耐腐蚀性能.
Abstract
The corrosion properties of pure zirconium(Zr)with different grain sizes in acid,alkali,and salt environments were studied.The microstructures of pure Zr were observed by optical microscope,X-ray diffractometer,and electron backscattered diffraction probe.The corrosion resistance of pure Zr was analyzed by electrochemical corrosion test and immersion test.Results show that pure Zr with grain size of 4-32 μm can be obtained after annealing at 800 ℃ for different durations,and the relationship between grain size and annealing duration is D3-D03=3.35t.The electrochemical corrosion and immersion corrosion test results show that the pure Zr with grain size of about 24 μm(annealing at 800 ℃ for 20 h)possesses the optimal corrosion resistance.
关键词
纯锆/晶粒尺寸/多种环境/耐腐蚀性能Key words
pure zirconium/grain size/various environments/corrosion resistance引用本文复制引用
基金项目
National Natural Science Foundation of China(52071126)
Natural Science Foundation of Tianjin City,China(22JCQNJC01240)
Central Guidance on Local Science and Technology Development Fund of Hebei Province(226Z1009G)
Special Funds for Science and Technology Innovation in Hebei(2022X19)
Foundation Strengthening Program(2019-JCJQ-00)
出版年
2024
NETL
NSTL
万方数据