纯Ti在600℃ NaCl盐雾环境中的腐蚀行为
Corrosion Behavior of Pure Ti in NaCl Salt Spray Environment at 600 ℃
摘 要
在600℃ NaCl盐雾环境中对纯Ti和Ti60合金进行腐蚀试验,通过扫描电镜,X射线衍射仪和电子探针等分析技术,从氧化动力学、氧化膜相组成和微观结构方面,研究了纯Ti在试验环境中的腐蚀行为。结果表明:在600℃ NaCl盐雾环境中腐蚀100 h后,纯Ti的腐蚀速率远高于Ti60合金。NaCl的加入使纯Ti表面氧化膜形成孔隙和裂纹,增加TiCl4的挥发和Ti的向外扩散,形成新的反应表面,开始新的生长周期,从而形成重复的多层氧化膜。
Ti60合金
NaCl盐雾
pure Ti
Ti60 alloy
NaCl salt spray
Abstract
Corrosion tests were carried out on pure Ti and Ti60 alloy in a NaCl salt spray environment at 600 ℃, and the oxidation kinetics, oxide film phase composition and microstructure were analyzed by scanning electron microscopy(SEM), X-ray diffractometer(XRD) and electron probe microanalysis (EPMA), to study the corrosion behavior of pure Ti in the experimental environment. The results suggested that the corrosion rate of pure Ti in NaCl salt spray environment was much higher than that of Ti60 alloy after being corroded in NaCl salt spray environment at 600 ℃ for 100 h. The presence of NaCl introduced pores and cracks into the oxide scale, increased the volatilization of TiCl4, formed a new reaction surface and started a new growth cycle, resulting in repeated multilayer oxide scale.
中图分类号 TG174 DOI 10.11973/fsyfh-202301001
所属栏目 试验研究
基金项目 国家重点研发计划(2017YFB0702303)
收稿日期 2022/3/11
修改稿日期
网络出版日期
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引用该论文: LI Rui,CUI Yu,LIU Li,LIU Rui,MENG Fandi,WANG Fuhui. Corrosion Behavior of Pure Ti in NaCl Salt Spray Environment at 600 ℃[J]. Corrosion & Protection, 2023, 44(1): 1
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参考文献
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【25】PERSDOTTER A,SATTARI M,LARSSON E,et al.Oxidation of Fe-2.25Cr-1Mo in presence of KCl(s) at 400℃ -Crack formation and its influence on oxidation kinetics[J]. Corrosion Science,2020,163:108234.
【2】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,2000,54:457-471.
【3】WANG F H,SHU Y H. Influence of Cr content on the corrosion of Fe-Cr alloys:the synergistic effect of NaCl and water vapor[J]. Oxid Met,2003,59:201-214.
【4】WANG F H,GENG S J, ZHU S L. Corrosion behavior of a sputtered K38G nanocrystalline coating with a solid NaCl deposit in wet oxygen at 600 to 700℃[J]. Oxid Met,2002,58:185-195.
【5】WANG C,JIANG F,WANG F H. Corrosion inhibition of 304 stainless steel by nano-sized Ti/Silicone coatings in an environment containing NaCl and water vapor at 400-600℃[J]. Oxid Met,2003,62:1-13.
【6】LIU L,LI Y,ZENG C L,et al. Electrochemical impedance spectroscopy (EIS) studies of the corrosion of pure Fe and Cr at 600℃ under solid NaCl deposit in water vapor[J]. Electrochim. Acta,2006,51:4736-4743.
【7】LIU L,LI Y,WANG F H. Corrosion behavior of metals or alloys with a solid NaCl deposit in wet oxygen at medium temperature[J]. Science China Technological Sciences,2012,55(2):369-376.
【8】TANG Y B,LIU L,LI Y,et al. The electrochemical corrosion mechanisms of pure Cr with NaCl deposit in water vapor at 600℃[J]. Journal of the Electrochemical Society,2011,158(8):C237.
【9】TANG Y B,LIU L,LI Y,et al. Evidence for the occurrence of electrochemical reactions and their interaction with chemical reactions during the corrosion of pure Fe with solid NaCl deposit in water vapor at 600℃[J]. Electrochemistry Communications,2010,12(2):191-193.
【10】LI Y S,NIU Y,WU W T. Accelerated corrosion of pure Fe,Ni,Cr and several Fe-based alloys induced by ZnCl2-KCl at 450℃ in oxidizing environment[J]. Materials Science and Engineering:A,2003,345(1/2):64-71.
【11】LIU Z,ZHAO Z B,LIU J R,et al. Distinct dendritic α phase emerging on the surface of primary α phase in a compressed near-α titanium alloy[J]. Journal of Materials Science & Technology,2018,34(4):666-669.
【12】ZHANG H W,MAN C,WANG L W,et al. Different corrosion behaviors between α and β phases of Ti6Al4V in fluoride-containing solutions:influence of alloying element Al[J]. Corrosion Science,2020,169:108605.
【13】YANG L N,LIU J R,TAN J,et al. Dwell and normal cyclic fatigue behaviours of Ti60 alloy[J]. Journal of Materials Science & Technology,2014,30(7):706-709.
【14】LI W Y,CHEN Z Y,LIU J R,et al. Rolling texture and its effect on tensile property of a near-α titanium alloy Ti60 plate[J]. Journal of Materials Science & Technology,2019,35(5):790-798.
【15】FAN L,LIU L,CUI Y,et al. Effect of streaming water vapor on the corrosion behavior of Ti60 alloy under a solid NaCl deposit in water vapor at 600℃[J]. Corrosion Science,2019,160:108177.
【16】FAN L,LIU L,YU Z F,et al. Corrosion behavior of Ti60 alloy under a solid NaCl deposit in wet oxygen flow at 600℃[J]. Scientific Reports,2016,6:29019.
【17】CISZAK C,POPA I,BROSSARD J M,et al. NaCl induced corrosion of Ti-6Al-4V alloy at high temperature[J]. Corrosion Science,2016,110:91-104.
【18】CISZAK C,POPA I,BROSSARD J M,et al. NaCl-induced high-temperature corrosion of β21S Ti alloy[J]. Oxidation of Metals,2017,87(5/6):729-740.
【19】CISZAK C,ABDALLAH I,POPA I,et al. Degradation mechanism of Ti-6Al-2Sn-4Zr-2Mo-Si alloy exposed to solid NaCl deposit at high temperature[J]. Corrosion Science,2020,172:108611.
【20】李蕊,崔宇,刘莉,等. NaCl盐雾环境下Ti60合金的中温腐蚀行为[J]. 中国腐蚀与防护学报,2021,41(5):595-601.
【21】CAO M,LIU L,YU Z F,et al. Studies on the corrosion behavior of Fe-20Cr alloy in NaCl solution spray at 600℃[J]. Corrosion Science,2018,133:165-177.
【22】LI R,LIU L,CUI Y,et al. Corrosion behavior of Ti60 alloy under continuous NaCl solution spraying at 600℃[J]. Journal of Materials Science & Technology,2022,124:86-101.
【23】DUMAS P,JOHN C S. NaCl-induced accelerated oxidation of a titanium alloy[J]. Oxidation of Metals,1976,10(2):127-134.
【24】XIONG Y M,ZHU S L,WANG F H. The oxidation behavior and mechanical performance of Ti60 alloy with enamel coating[J]. Surface and Coatings Technology,2005,190(2/3):195-199.
【25】PERSDOTTER A,SATTARI M,LARSSON E,et al.Oxidation of Fe-2.25Cr-1Mo in presence of KCl(s) at 400℃ -Crack formation and its influence on oxidation kinetics[J]. Corrosion Science,2020,163:108234.
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