316H在NaCl-KCl-MgCl2熔盐中的腐蚀行为
Corrosion Behavior of 316H in NaCl-KCl-MgCl2 Molten Salt
摘 要
采用静态腐蚀和动态腐蚀相结合,系统研究了316H(不锈钢)在700 ℃氯化物熔盐中的腐蚀行为。结果表明:静态腐蚀1 000 h后,316H在未净化熔盐中表现为明显的晶间腐蚀,腐蚀深度约80 μm;在净化熔盐中,316H腐蚀较弱,腐蚀后试样表面有厚3 μm的贫Cr层。动态腐蚀后,试样表面贫Cr层厚约6 μm。在氯化物熔盐中添加金属Mg可以有效抑制316H的晶间腐蚀。
高温
氯化物熔盐
动态腐蚀
腐蚀防护
316H stainless steel
high temperature
chloride molten salt
dynamic corrosion
corrosion protection
Abstract
The corrosion behavior of 316H (stainless steel) in 700 ℃ chloride molten salt was systematically studied using a combination of static corrosion test and dynamic corrosion test. The results showed that after 1 000 hours of static corrosion, 316H exhibited significant intergranular corrosion in the unpurified molten salt, with a corrosion depth about 80 μm. In purified molten salt, the corrosion of 316H was relatively weak, and the surface of the sample after corrosion had a Cr deficient layer about 3 μm thick. After dynamic dynamic corrosion, the thickness of the Cr deficient layer on the surface of the sample was about 6 μm. Adding metal Mg to the chloride molten salt could effectively suppress the intergranular corrosion of 316H.
中图分类号 TG174 DOI 10.11973/fsyfh-202307012
所属栏目 试验研究
基金项目 科技部重大研究计划(2017YFA0402800);变革性洁净能源先导专项(XDA21000000)
收稿日期 2022/6/20
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: LIU Huajian,CHEN Bingchuan,AI Hua,YANG Xinmei,ZHOU Xingtai. Corrosion Behavior of 316H in NaCl-KCl-MgCl2 Molten Salt[J]. Corrosion & Protection, 2023, 44(7): 69
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】MARK M,CRAIG T,JUDITH V,et al. Concentrating Solar Power Gen3 Demonstration Roadmap[R]. Colorado,NREL/TP-5500-67464.2017.
【2】尹辉斌,丁静,杨晓西. 聚焦式太阳能热发电中的蓄热技术及系统[J]. 热能动力工程,2013,28(1):1-6,105.
【3】王玉倩. 熔盐储能材料在太阳能光热发电中的应用[J]. 化学工业,2019,37(6)28-33,39.
【4】孙华,张鹏,王建强. 传热储热用熔融硝酸盐及其腐蚀问题[J]. 腐蚀科学与防护技术,2017,29(5):567-574.
【5】沈向阳,丁静,彭强,等. 高温熔盐在太阳能热发电中的应用[J]. 广东化工,2007,34(11)49-52.
【6】LI P W,CHAN C L,HAO Q,et al. Halide and oxy-halide eutectic systems for high-performance,high-temperature heat transfer fluids[C]//Sunshot Concentrating Solar Power Program Review 2013. Phoenix,Arizona,2013:85.
【7】KRUIZENGA A. Corrosion mechanisms in chloride and carbonate salts[R]. Albuquerque,Livermore:Sandia National Laboratories, 2012.
【8】SOHAL M,EBNER M,SABHARWALL P,et al. Engineering database of liquid salt thermo-physical and thermo-chemical properties[R]. Idaho Falls:Idaho National Laboratory,2010.
【9】OZERYANAYA I N. Corrosion of metals by molten salts in heat-treatment processes[J]. Metal Science and Heat Treatment,1985,27(3):184-188.
【10】KOGER J W. Corrosion and mass transfer characteristics of NaBF3-NaF (92-8 mole%) in Hastelloy N.[R]. ORNL-TM-3866,Oak Ridge:Oak Ridge National Laboratory,1972.
【11】DELPECH S,CABET C,SLIM C,et al. Molten fluorides for nuclear applications[J]. Materials Today,2010,13(12):34-41.
【12】XINMEI,YANG. Corrosion behavior of GH3535 alloy in molten LiF-BeF2 salt[J]. Corrosion Science,2022,199:110168.
【13】AMBROSEK J W. Molten chloride salts for heat transfer in nuclear systems[D]. Madison,WI,USA:The University of Wisconsin-Madison,2011.
【14】WILLIAMS D F. Assessment of candidate molten salt coolants for the NGNP/NHI heat-transfer loop[R]. Oak Ridge:Oak Ridge National Laboratory,2006.
【15】DING W J,SHI H,JIANU A,et al. Molten chloride salts for next generation concentrated solar power plants:Mitigation strategies against corrosion of structural materials[J]. Solar Energy Materials and Solar Cell,2019,193(1):298-313.
【16】GARCIADIAZ B L,OLSON L,Martinez R M,et al. High temperature electrochemical engineering and clean energy systems[J]. Journal of the South Carolina Academy of Science,2016,14(1):11-14.
【2】尹辉斌,丁静,杨晓西. 聚焦式太阳能热发电中的蓄热技术及系统[J]. 热能动力工程,2013,28(1):1-6,105.
【3】王玉倩. 熔盐储能材料在太阳能光热发电中的应用[J]. 化学工业,2019,37(6)28-33,39.
【4】孙华,张鹏,王建强. 传热储热用熔融硝酸盐及其腐蚀问题[J]. 腐蚀科学与防护技术,2017,29(5):567-574.
【5】沈向阳,丁静,彭强,等. 高温熔盐在太阳能热发电中的应用[J]. 广东化工,2007,34(11)49-52.
【6】LI P W,CHAN C L,HAO Q,et al. Halide and oxy-halide eutectic systems for high-performance,high-temperature heat transfer fluids[C]//Sunshot Concentrating Solar Power Program Review 2013. Phoenix,Arizona,2013:85.
【7】KRUIZENGA A. Corrosion mechanisms in chloride and carbonate salts[R]. Albuquerque,Livermore:Sandia National Laboratories, 2012.
【8】SOHAL M,EBNER M,SABHARWALL P,et al. Engineering database of liquid salt thermo-physical and thermo-chemical properties[R]. Idaho Falls:Idaho National Laboratory,2010.
【9】OZERYANAYA I N. Corrosion of metals by molten salts in heat-treatment processes[J]. Metal Science and Heat Treatment,1985,27(3):184-188.
【10】KOGER J W. Corrosion and mass transfer characteristics of NaBF3-NaF (92-8 mole%) in Hastelloy N.[R]. ORNL-TM-3866,Oak Ridge:Oak Ridge National Laboratory,1972.
【11】DELPECH S,CABET C,SLIM C,et al. Molten fluorides for nuclear applications[J]. Materials Today,2010,13(12):34-41.
【12】XINMEI,YANG. Corrosion behavior of GH3535 alloy in molten LiF-BeF2 salt[J]. Corrosion Science,2022,199:110168.
【13】AMBROSEK J W. Molten chloride salts for heat transfer in nuclear systems[D]. Madison,WI,USA:The University of Wisconsin-Madison,2011.
【14】WILLIAMS D F. Assessment of candidate molten salt coolants for the NGNP/NHI heat-transfer loop[R]. Oak Ridge:Oak Ridge National Laboratory,2006.
【15】DING W J,SHI H,JIANU A,et al. Molten chloride salts for next generation concentrated solar power plants:Mitigation strategies against corrosion of structural materials[J]. Solar Energy Materials and Solar Cell,2019,193(1):298-313.
【16】GARCIADIAZ B L,OLSON L,Martinez R M,et al. High temperature electrochemical engineering and clean energy systems[J]. Journal of the South Carolina Academy of Science,2016,14(1):11-14.
相关信息
