Please wait a minute...
 
材料工程  2016, Vol. 44 Issue (2): 69-74    DOI: 10.11868/j.issn.1001-4381.2016.02.011
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
涂覆Na2SO4-25%NaCl盐膜的Super304H的热腐蚀行为
李萍, 秦鹏, 赵杰, 李廷举, 庞胜娇
大连理工大学 材料科学与工程学院, 辽宁 大连 116024
Hot Corrosion Behavior of Super304H Coated Na2SO4-25%NaCl Film
LI Ping, QIN Peng, ZHAO Jie, LI Ting-ju, PANG Sheng-jiao
College of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
全文: PDF(3880 KB)   HTML()
输出: BibTeX | EndNote (RIS)      
摘要 应用增重分析法研究涂有Na2SO4-25%NaCl盐膜的Super304H在650,750℃空气中的腐蚀动力学曲线,采用XRD,SEM(EDS)和EPMA对腐蚀产物、腐蚀截面形貌和元素分布进行分析。结果表明:涂覆Na2SO4-25%NaCl盐膜的合金在650,750℃的腐蚀动力学曲线均呈"抛物线"趋势;合金表面形成了含CuFe2O4的富Fe氧化物(外层)与富Cr2O3(内层)组成的双层氧化膜以及含有孔隙的贫Cr、富Ni的腐蚀影响区;提高腐蚀温度或延长腐蚀时间均可以导致氧化膜与基体分离甚至剥落,腐蚀影响区孔隙密度增大,裂纹向基体延伸。分析认为:腐蚀初期合金发生选择性氧化,形成多层氧化膜;复合盐的熔融破坏氧化膜的完整性,加速氧化、氯化以及硫化的交互作用,导致内硫化和内氧化。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
李萍
秦鹏
赵杰
李廷举
庞胜娇
关键词 热腐蚀氯化硫化氧化    
Abstract:Corrosion kinetics curves of Super304H coated with Na2SO4-25%NaCl at 650℃ and 750℃ in the air were investigated by applying weight analysis method. The corrosion product, cross-section appearance and elements distribution were analyzed by XRD, SEM equipped with EDS, and EPMA. The results show that the corrosion kinetics curves at 650℃ and 750℃are in parabolic trend. A two-layered complex oxide film with the outer Fe rich oxide layer containing CuFe2O4 and inner Cr2O3rich layer and the poor Cr, rich Ni corrosion affected zone containing voids; Increasing the temperature or prolonging the corrosion time can result in the separation or even spalling of oxide film from the base alloy, and porosity density increases in the corrosion affected zone, cracks propagate to the base metal. Analysis shows that the selective oxidation occurs at the early corrosion stage and forms multi-layer oxide film; the molten salts destroy the integrity of the oxide film and accelerate the interaction among oxidation, chlorination and sulfuration during the corrosion processing, which results in the severe internal oxidation and sulfuration.
Key wordshot corrosion    chlorination    sulfuration    oxidation
收稿日期: 2014-12-05      出版日期: 2016-02-22
1:  TG172  
通讯作者: 李萍(1969-),女,副教授,博士,主要从事材料无损表征与评价方面研究工作,联系地址:大连理工大学材料科学与工程学院(116024),E-mail:liping69@dlut.edu.cn     E-mail: liping69@dlut.edu.cn
引用本文:   
李萍, 秦鹏, 赵杰, 李廷举, 庞胜娇. 涂覆Na2SO4-25%NaCl盐膜的Super304H的热腐蚀行为[J]. 材料工程, 2016, 44(2): 69-74.
LI Ping, QIN Peng, ZHAO Jie, LI Ting-ju, PANG Sheng-jiao. Hot Corrosion Behavior of Super304H Coated Na2SO4-25%NaCl Film. Journal of Materials Engineering, 2016, 44(2): 69-74.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.02.011      或      http://jme.biam.ac.cn/CN/Y2016/V44/I2/69
[1] ISEDA A, OKADA H, SEMBA H, et al. Long term creep properties and microstructure of SUPER304H, TP347HFG and HR3C for advanced USC boilers[J].Science and Engineering for Energy Systems,2007,11(2):199-206.
[2] VISWANATHAN R,PURGERT R, RAO U. Materials for ultra-supercritical coal-fired power plant boilers[A].Proceedings of the 2nd Regional Conference on Energy Technology Towards a Clean Environment[C]. Thailand,Phuket:2003.
[3] 赵旺初. 国外超临界机组用钢[J].大型铸锻件, 2006,11(2):47-50. ZHAO Wang-chu. The steel used for the oversea supercritical unit[J]. Heavy Castings and Forgings, 2006,11(2):47-50.
[4] SHINATA Y, TANKAHAS F, KHASHIURA I. NaCl-induced hot corrosion of stainless steels[J].Mater Sci Eng, 1987,87:399-405.
[5] HIRAMATSU N, UEMATSU Y, TANAKA T, et al. Effects of alloying elements on NaCl-induced hot corrosion of stainless steels[J]. Mater Sci Eng A, 1989,120-121(1):319-328.
[6] SHU Y H, WANG F H, WU W T. Corrosion behavior of pure Cr with a solid NaCl deposit in O2 plus water vapor[J]. Oxid Met, 2000,54(5-6):457-471.
[7] SHU Y, WANG F. Influence of Cr content on the corrosion of Fe-Cr alloys:The synergistic effect of NaCl and water vapor[J]. Oxid Met, 2003, 59(3-4):201-214.
[8] WANG C J, HE T T. Morphological development of subscale formation in Fe-Cr-(Ni) alloys with chloride and sulfates coating[J]. Oxid Met, 2002,58(3-4):415-437.
[9] WANG C J, CHANG Y C.TEM study of the internal oxidation of an Fe-Mn-Al-C alloy after hot corrosion[J]. Oxid Met, 2002,57(3-4):363-378.
[10] WANG C J, CHANG Y C. NaCl-induced hot corrosion of Fe-Mn-Al-C alloys[J]. Mat Chems Phys, 2002,76:151-161.
[11] LAI G Y. High-Temperature Corrosion of Engineering Alloys[M]. OH:American Society for Metals, Metals Park, 1990.
[12] 张柯,牛焱,吴维涛.NiCr合金在含氯氧化性气氛中的高温腐蚀[J].材料工程,2005,(1):12-15. ZHANG Ke, NIU Yan, WU Wei-tao. High temperature corrosion of NiCr alloys in chlorination-oxidation atmosphere[J]. Journal of Materials Engineering,2005,(1):12-15.
[13] 苏义祥,张媛媛,鲍艳东,等.新型Te-Ni-Cr合金在Na2SO4-25%NaCl熔盐中的腐蚀行为[J].铸造,2012,61(1):25-29. SU Yi-xiang, ZHANG Yuan-yuan, BAO Yan-dong,et al. Corrosion behavior of new Te-Ni-Cr alloy in molten salt NaCl-Na2SO4[J].Foundry,2012,61(1):25-29.
[14] 秦廷生,李书善.电站锅炉受热面高温氯腐蚀的机理探讨[J].煤, 2001,(2):42,52. QIN Ting-sheng,LI Shu-shan. Study on the mechanism of chlorine corrosion under high temperature of boiler heating surfa-ce in power plant[J].Coal,2001,(2):42,52.
[15] KIM J H, KIM D I, SHIM J H, et al. Investigation into the high temperature oxidation of Cu-bearing austenitic stainless steel using simultaneous electron backscatter diffraction-energy dispersive spectroscopy analysis[J].Corrosion Science, 2013,(77):397-402.
[16] DEB D,LYER S R,RADHAKRISHNAN V M. A comparative study of oxidation and hot corrosion of a cast nickel base super-alloy in different corrosive environments[J]. Materials Letters,1996,29(1):19-23.
[17] KNACKE O, KUBASCHEWSKI O, HESSELMANN K. Thermo-chemical properties of inorganic substance[M].2nd ed. Berlin:Springer,1991.
[18] SHINATA Y. Accelerated oxidation rate of chromium induced by sodium chloride[J].Oxidation of Metals,1987,27(5-6):315-320.
[19] TSAUR C C,ROCK J C,WANG C J,et al. The hot corrosion of 310 stainless steel with Pre-coated NaCl/Na2SO4 mixtures at 750℃[J]. Materials Chemistry and Physics,2005,89(2-3):445-453.
[20] ZHAO S Q, XIE X S, SMITH G D, et al. The corrosion of INCONEL alloy 740 in simulated environments for pulverized coal-fired boiler[J].Materials Chemistry and Physics,2005,90(2):275-281.
[1] 王丽丽, 李嘉荣, 唐定中, 刘世忠. SiO2-ZrO2陶瓷型芯与DZ125,DD5和DD6三种铸造高温合金的界面反应[J]. 材料工程, 2016, 44(3): 9-14.
[2] 文磊, 王亚明, 金莹. 表面纳米化-微弧氧化复合涂层对铝合金拉伸性能影响机制研究[J]. 材料工程, 2016, 44(3): 15-20.
[3] 弭光宝, 曹春晓, 黄旭, 曹京霞, 王宝, 隋楠. Ti-V-Cr系阻燃钛合金的非等温氧化行为及阻燃性能预测[J]. 材料工程, 2016, 44(1): 1-10.
[4] 夏伶勤, 韩建民, 崔世海, 杨智勇, 李卫京. SiCp/A356复合材料微弧氧化陶瓷膜的生长规律与性能[J]. 材料工程, 2016, 44(1): 40-46.
[5] 谭英梅, 曹国剑, 李双, 古乐. 球磨制备轴承珠表面自润滑涂层及其摩擦性能[J]. 材料工程, 2015, 43(9): 19-24.
[6] 韩全勇, 朱燕娟, 苗成成, 罗洁, 张伟, 赵腾起, 张春华. 阴离子(NO3-/Cl-/SO42-)对Ni(OH)2晶型及其结构稳定性的影响[J]. 材料工程, 2015, 43(8): 25-30.
[7] 戴磊, 龙柱, 张丹. TEMPO氧化纤维素纳米纤维的制备及应用研究进展[J]. 材料工程, 2015, 43(8): 84-91.
[8] 郝红英, 王茜, 王文俊. CRGP柔性导电薄膜及其超级电容器制备与性能[J]. 材料工程, 2015, 43(7): 26-31.
[9] 吴明元, 张建安, 杨建军, 吴庆云. 聚硫密封剂硫化过程动力学研究[J]. 材料工程, 2015, 43(7): 43-47.
[10] 高党鸽, 陈琛, 吕斌, 马建中. 原位制备季铵盐聚合物/纳米ZnO复合抗菌剂[J]. 材料工程, 2015, 43(6): 38-45.
[11] 卢林刚, 陈英辉, 程哲, 杨守生, 邵高耸. 新型无卤膨胀/MH阻燃环氧树脂的制备及阻燃性能[J]. 材料工程, 2015, 43(5): 50-55.
[12] 张凌云, 贾若琨, 孙旭辉, 张瑛洁, 刘春光. NH3气氛下N掺杂ZnO的制备及光电性能[J]. 材料工程, 2015, 43(4): 25-29.
[13] 杨淑敏, 李海涛, 顾建军, 韩伟, 杨巍, 岂云开. 彩色多孔氧化铝薄膜的制备和光学特性[J]. 材料工程, 2015, 43(4): 30-36.
[14] 贺世美, 熊翔, 何利民. 新型Yb2SiO5环境障涂层1400℃高温氧化行为[J]. 材料工程, 2015, 43(4): 37-41.
[15] 郝文魁, 刘智勇, 马岩, 杜翠薇, 李晓刚, 胡山山. 不同pH的碱性环境中16Mn钢及热影响区应力腐蚀行为[J]. 材料工程, 2015, 43(3): 28-34.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 2015《材料工程》编辑部
地址:北京81信箱44分箱 邮政编码: 100095
电话:010-62496276 E-mail:matereng@biam.ac.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn