Ce和W对444铁素体不锈钢耐点蚀性的影响

doi:10.13228/j.boyuan.issn1006-9356.20220115

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摘要采用浸泡失重法和电化学方法研究Ce和W对铁素体不锈钢在含Cl^-溶液中耐点蚀性能的影响,并通过恒电位极化法测定不同Ce和W含量的铁素体不锈钢临界点蚀温度(CPT)。结果表明,W和Ce都可显著抑制铁素体不锈钢在FeCl₃溶液中的腐蚀溶解,且含W的不锈钢蚀坑坑底有W元素富集。Ce和W的添加提高了不锈钢在5%NaCl溶液中的临界点蚀温度,并且当W的质量分数达到1%时,可以显著增强蚀坑的再钝化能力。添加Ce和W可提高不锈钢的点蚀电位,降低腐蚀电流密度,提高不锈钢的耐点蚀性能。不同成分的铁素体不锈钢在中性氯溶液中都表现出稳定的钝态,而Ce和W的添加可以提高钝化膜的稳定性,扩大钝化区范围。

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关键词 ：铁素体不锈钢, 耐点蚀性能, 稀土, 钨, 钝化膜

Abstract：The effect of Ce and W addition on pitting corrosion resistance of ferritic stainless steel in the solution containing Cl^- was studied by electrochemical and gravimetric tests. The critical pitting temperature (CPT) of ferritic stainless steel with different Ce and W contents was measured by potentiostatic polarization method. The results show that addition of both Ce and W can inhibit the corrosion dissolution of ferritic stainless steel in FeCl₃, and W element is enriched on corrosion pits bottom of stainless steels containing W. Both Ce and W increase the critical pitting temperature value of ferritic stainless steel in 5%NaCl solution. When the mass fraction of W element reaches 1%, the repassivation ability of corrosion pits can be significantly enhanced. The addition of Ce and W can increase the pitting potential of ferritic stainless steel, decrease the pitting current density, and improve the pitting resistance of the stainless steel. Ferritic stainless steels with different components show stable passivation in neutral solution containing chlorine, while the addition of Ce and W can improve the stability of passivation film and expand the range of passivation zone.

Key words： ferritic stainless steel pitting corrosion resistance rare earth element tungsten passive film

收稿日期: 2022-02-14

作者简介: 马明玉(1988—), 女, 博士, 工程师; E-mail: 312728444@qq.com

引用本文:

马明玉, 周娜, 龚坚, 吕宝锋, 牛涛, 关建东. Ce和W对444铁素体不锈钢耐点蚀性的影响[J]. 中国冶金, 2022, 32(6): 79-86. MA Ming-yu, ZHOU Na, GONG Jian, LÜ Bao-feng, NIU Tao, GUAN Jian-dong. Effect of Ce and W on pitting corrosion resistance of 444-type ferritic stainless steel[J]. China Metallurgy, 2022, 32(6): 79-86.

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http://www.zgyj.ac.cn/CN/10.13228/j.boyuan.issn1006-9356.20220115 或 http://www.zgyj.ac.cn/CN/Y2022/V32/I6/79

[1]	丁茹,王伯健,王成. 铁素体不锈钢的开发研究[J]. 钢铁研究学报,2009,21(10):1.
[2]	戴相全,毕洪运,王可. 宝钢汽车排气系统用不锈钢国产化的应用[J]. 材料应用,2011(4):54.
[3]	YAN Hai-tao,BI Hong-yun,LI Xin,et al. Microstructure and texture of Nb+Ti stabilized ferritic stainless steel[J]. Materials Characterization,2008,59:1741.
[4]	Han Jian,Li Huijun,Frank Barbaro,et al. Precipitation and impact toughness of Nb-V stabilised 18Cr-2Mo ferritic stainless steel during isothermal aging[J]. Materials Science and Engineering A,2014,612:63.
[5]	Silva C Cleiton,Farias P Jesualdo,Mirand C Hélio,et al. Microstructural characterization of the HAZ in AISI 444 ferritic stainless steel welds[J]. Materials Characterization,2008,59:528.
[6]	Tavares S S M,Souza de J A, Herculano L F G,et al. Microstructural,magnetic and mechanical property changes in an AISI 444 stainless steel aged in the 560 ℃ to 800 ℃ range[J]. Materials Characterization,2008,59:112.
[7]	Bitondo C,Bossio A,Monetta T,et al. The effect of annealing on the corrosion behaviour of 444 stainless steel for drinking water applications[J]. Corrosion Science,2014,87:6.
[8]	郝文魁,刘智勇,黄天杰,等. 不同敏化温度和冷凝液成分对430铁素体不锈钢电化学腐蚀行为影响[J]. 机械工程学报,2015,51(4):58.
[9]	习小军,杨树峰,李京社,等. 含铈304不锈钢夹杂物改性及耐腐蚀性能优化[J]. 钢铁,2020,55(1):20.
[10]	杨吉春,王军,任磊,等. 铈对S32550双相不锈钢微观组织及冲击性能的影响[J]. 钢铁,2020,55(1):86.
[11]	Cwalina Lutton K,Demarest C R,Gerard A Y,et al. Revisiting the effects of molybdenum and tungsten alloying on corrosion behavior of nickel-chromium alloys in aqueous corrosion[J]. Current Opinion in Solid State and Materials Science,2019,23:129.
[12]	Jeon Soon Hyeok,Kim Soon Tae,Lee In Sung,et al. Effects of W substitution on the precipitation of secondary phases and the associated pitting corrosion in hyper duplex stainless steels[J]. Journal of Alloys and Compounds,2012,544:166.
[13]	王继红,丰涵,宋志刚,等. 钨含量及固溶温度对022Cr25 Ni7Mo3.5WCuN钢耐腐蚀性能的影响[J]. 中国冶金,2019,29(9):33.
[14]	Gaudet T G,Mo T W,Hatton A T,et al. Mass transfer and electrochemical kinetic interactions in localized pitting corrosion [J]. Aiche Journal,1986,32(6):949.
[15]	Cwalina Lutton K,Demarest C R,Gerard A Y,et al. Revisiting the effects of molybdenum and tungsten alloying on corrosion behavior of nickel-chromium alloys in aqueous corrosion[J]. Current Opinion in Solid State and Materials Science,2019,23:129.
[16]	XU Xiu-qing,ZHAO Mi-feng,FENG Yao-rong,et al. A comparative study of critical pitting temperature (CPT) of super duplex stainless steel S32707 in NaCl Solution[J]. International Journal of Electrochemical Science,2018,13:4298.
[17]	石慧英,左禹. 钨酸根离子对304不锈钢亚稳态与稳态孔蚀形核与生长的影响[J]. 腐蚀科学与防护技术,2018,30(2):167.
[18]	Fernández Domene R M,Blasco Tamarit E,García García D M,et al. Effect of alloying elements on the electronic properties of thin passive films formed on carbon steel,ferritic and austenitic stainless steels in a highly concentrated LiBr solution[J]. Thin Solid Films,2014,558:252.
[19]	LUO H,SU H,DONG C,et al. Passivation and electrochemical behavior of 316L stainless steel in chlorinated simulated concrete pore solution[J]. Applied Surface Science,2017,400:38.
[20]	Veluchamy Angathevar,Sherwood Daniel,Emmanuel Bosco,et al. Critical review on the passive film formation and breakdown on iron electrode and the models for the mechanisms underlying passivity[J]. Journal of Electroanalytical Chemistry,2017,785:196.