氯化物熔盐是太阳能热发电储热系统具有前景的储热介质,但其对金属材料具有很强的腐蚀性.研究了太阳能热发电系统两种常用材料316L不锈钢和Inconel 625合金在900℃的NaCl、KCl、MgCl2和CaCl2熔盐中的腐蚀行为,采用XRD、带有能谱分析系统的扫描电镜分析了腐蚀产物的相组成和形貌.研究结果表明:两种材料在氯化物熔盐中均腐蚀严重,但在碱土金属氯化物熔盐(MgCl2、CaCl2)中的腐蚀程度要比它们在碱金属氯化物熔盐(NaCl、KCl)中严重得多.与Inconel 625合金相比,316L不锈钢在同种氯化物熔盐中的腐蚀速度较快.造成这种现象的原因是316L不锈钢表面的腐蚀产物FeCaO4和Fe3O4比Inconel 625合金表面的腐蚀产物更易在氯化物熔盐中溶解.研究结果将有助于太阳能热发电系统的选材和发展腐蚀防护技术.
参考文献
| [1] | 中国可再生能源发展战略与政策研究[J].经济研究参考,2004(84):26-32. |
| [2] | 王蔚,李新民."十二五"太阳能光热发电将异军突起[J].化工管理,2011(07):15-16. |
| [3] | Thirugnanasambandam M,Iniyan S,Goic R .A review of solar thermal technologies[J].Renew Sustainable Energy Rev,2010,14(1):312,2010. |
| [4] | Flueckiger S,Zhen Y,Garimella S V .An integrated thermal and mechanical investigation of molten-salt thermocline energy storage[J].Appl Energy,2011,88(6):2098,2011. |
| [5] | Sun Liping.Optimization and corrosion properties of hightemperature molten salt of solar energy experimental study[D].Beijing:Beijing University of Technology,2007 ,2007. |
| [6] | 孙李平 .太阳能高温熔盐优选及腐蚀特性实验研究[D].北京工业大学,2007. |
| [7] | Kenisarin M M .High temperature phase change materials for thermal energy storage[J].Renew Sustainable Energy Rev,2010,14(3):955,2010. |
| [8] | 彭强,丁静,魏小兰,杨建平,杨晓西.硝酸熔盐体系在能源利用中的研究进展[J].现代化工,2009(06):17-22,24. |
| [9] | 彭强,丁静,魏小兰,杨建平,杨晓西.硝酸熔盐体系在能源利用中的研究进展[J].现代化工,2009(06):17-22,24. |
| [10] | Lu Yang,Peng Guowei,Wang Zhiping,et al .A review on research for molten salt as a phase change material[J].Mater Rev:Rev,2011,25(11):38 路阳,彭国伟,王智平,等.熔融盐相变储热材料的研究现状及发展趋势[J].材料导报:综述篇,2011,25(11):38,2011. |
| [11] | 路阳,彭国伟,王智平,王克振,马榕彬.熔融盐相变储热材料的研究现状及发展趋势[J].材料导报,2011(21):38-42. |
| [12] | 白宝云,罗兴宏,范存淦.奥氏体不锈钢在熔融碳酸盐中的腐蚀[J].中国腐蚀与防护学报,2002(05):278-281. |
| [13] | 白宝云,罗兴宏,范存淦.奥氏体不锈钢在熔融碳酸盐中的腐蚀[J].中国腐蚀与防护学报,2002(05):278-281. |
| [14] | Grabke H J,Reese E,Spiegel M .The effects of chlorides,hydrogen chloride,and sulfur dioxide in the oxidation of steels below deposits[J].Corros Sci,1995,37(7):1023,1995. |
| [15] | Ma Haitao.Corrosion of metal materials in high temperature chloride environment[D].Dalian:Dalian University of Technology,2003 ,2003. |
| [16] | 马海涛 .高温氯盐环境中金属材料的腐蚀[D].大连理工大学,2003. |
| [17] | Pettersson J,Folkeson N,Svensson J E,et al .The effects of KCl,K2SO4 and K2CO3 on the high temperature corrosion of a 304-type austenitic stainless steel[J].Oxidation Metal,2011,76(1):93,2011. |
| [18] | Viklund P,Hj(o)rnhede A,Henderson P,et al .Viklund P,Hj(o)rnhede A,Henderson P,et al.Corrosion of superheater materials in a waste-to-energy plant[J].Fuel Process Techn,2013,105 |
| [19] | Rapp R A .Hot corrosion of materials:A fluxing mechanism[J].Corros Sci,2002,44(2):209,2002. |
| [20] | Colom F,Bodolo A .Corrosion of iron (ARMCO) in KCl-LiCl melts[J].Corros Sci,1972,12(9):731,1972. |
| [21] | Ishituka T,Nose K .Solubility study on protective oxide films in molten chlorides created by refuse incineration environments[J].Mater Corros,2000,51(3):177,2000. |
| [22] | Kawahara Y .High temperature corrosion mechanisms and effect of alloying elements for materials used in waste incineration environment[J].Corros Sci,2002,44(2):223,2002. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%