摘要
不锈钢是高压氢系统的常用材料,在氢能储输技术中发挥重要作用,但高压氢环境引起的塑性降低、疲劳裂纹扩展速率加快等不锈钢氢脆问题,严重阻碍了氢能的产业化发展,在不锈钢材料表面制备阻氢涂层是解决不锈钢氢损伤问题的重要手段之一。本文首先综合介绍了典型涂层材料的应用特点及阻氢性能,探讨了制备工艺对涂层阻氢性能的影响、不同涂层材料的阻氢机理,并分析了涂层阻氢性能影响因素,之后总结了涂层阻氢性能评价方法及各种评价方法的优势与不足,并根据各种评价方法的技术特点,指出每种方法的适用范围。最后,基于阻氢涂层研究进展,文章提出以开发新型涂层结构为研究重点,同时加快新型涂层材料的探索,并重点关注涂层氢环境原位性能评价方法的研究。
The stainless steel which is used for making containers of hydrogen plays a key role in hydrogen energy, but the hydrogen can diffusion into stainless steel and will seriously affect the properties of the stainless steel, resulting in fracture, corrosion, accelerated fatigue crack growth and other hydrogen embrittlement problems. Until now, the hydrogen permeation barrier coatings have become the main method to solve hydrogen embrittlement of the stainless steel. Therefore, the application of coatings to alleviate hydrogen embrittlement of stainless steel is potential. First, the materials and the preparations of coatings are discussed, and the scope of application of every coating is analyzed. According to the models of hydrogen permeation behavior of coatings, the mechanism of hydrogen permeation resistance is discussed. Then the methods of coatings properties evaluation are introduced, and the limitations of every method are pointed out as well. Finally, the new materials, the new structure and new preparation of the coating should be focused in the future, meanwhile the coatings properties evaluation under hydrogen atmosphere should be demanded as soon as possible.
作者
周池楼
何默涵
肖舒
石科军
吴昊
江赛华
陈国华
吴春明
ZHOU Chilou;HE Mohan;XIAO Shu;SHI Kejun;WU Hao;JIANG Saihua;CHEN Guohua;WU Chunming(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510641,Guangdong,China;Guangdong Provincial Science and Technology Collaborative Innovation Center for Work Safety,Guangzhou 510640,Guangdong,China;Guangzhou Yichang Technology Company Limited,Guangzhou 510663,Guangdong,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2020年第9期3458-3468,共11页
Chemical Industry and Engineering Progress
基金
国家自然科学基金(51705157)
国家重点研发计划(2018YFC0809005)
广东省基础与应用基础研究基金(2019A1515011157)
广州市科技计划(202002030275)
国家留学基金(201906155051)
中央高校基本科研业务费专项资金(2019MS066)。
关键词
氢
安全
不锈钢
涂层
渗透
氢脆
hydrogen
safety
stainless steel
coatings
permeation
hydrogen embrittlement
