表面粗糙度对316L不锈钢亚稳态孔蚀行为的影响

中国腐蚀与防护学报

2002, Vol. 22

Issue (3): 158-161

研究报告

本期目录 | 过刊浏览

表面粗糙度对316L不锈钢亚稳态孔蚀行为的影响

王海涛;左禹;熊金平

中国科学院金属研究所;材料环境腐蚀试验研究中心

EFFECT OF SURFACE ROUGHNESS ON METASTABLE PITTING BEHAVIOR OF STAINLESS STEEL

Haitao Wang;Yu Zuo;Jinping Xiong

中国科学院金属研究所;材料环境腐蚀试验研究中心

全文: PDF(137 KB)

摘要: 用恒电位和动电位下的电流-时间记录法研究了表面粗糙度对316不锈钢亚稳态孔蚀行为的影响.结果表明，表面粗糙度增大使亚稳孔的形核数明显增加，亚稳孔电流峰值也有所增大，亚稳孔生长速度则略有下降.提出了一个表征表面沟槽“ 开放度”的参量w/d，w/d值越大则表面越平坦，亚稳态小孔越难于形核.一定的电位和溶液条件下存在一个临界w/d值，只有w/d值低于此临界值的表面才能形成亚稳态小孔.随w/d 值增大，亚稳态孔蚀电位Em和稳定孔蚀电位Ep都逐渐正移.用w/d值定性解释了表面粗糙度与亚稳态小孔形核速率、峰值电流和生长速度之间的关系.

关键词 ：不锈钢, 孔蚀, 亚稳态, 表面粗糙度

Abstract：The metastable pitting behavior of 316L stainless s teel with different surface roughness in 0.01 mol/L NaCl solution was studie d us ing potentiostatic and potentiodynamic polarization methods and statistical trea tments.As surface roughness decreased,the nucleation rate of metastable pits dec reased.The peak current of metastable pits also decreased,but the average growth rate of metastable pits showed a slight increase.An openness parameter,w/d, was suggested to characterize the openness of surface grooves,in which w is the width of the groove at the opening and d the depth of the groove.Bigger w/d value means more smooth surface,and it is more difficult for micro-pit t o nucleate.Under certain condition of solution and potential,there is a critical w/d value.Metastable pits may nucleate only on those surfaces whose w/d values are lower than the critical value.As the openness parameter w/d incr eases,the nucleation rate of metastable pits decreases linearly,and both metasta ble pitting potential Em and pitting potential Ep move in the positi ve direction.

Key words： stainless steel metastable pitting surface roughness

收稿日期: 2000-10-10

ZTFLH:

TG174.2

通讯作者: 王海涛 E-mail: htwang@imr.ac.cn

Corresponding author: Haitao Wang E-mail: htwang@imr.ac.cn

	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
	王海涛
	左禹
	熊金平
44.8K

引用本文:

王海涛; 左禹; 熊金平 . 表面粗糙度对316L不锈钢亚稳态孔蚀行为的影响[J]. 中国腐蚀与防护学报, 2002, 22(3): 158-161 .
Haitao Wang, Yu Zuo, Jinping Xiong. EFFECT OF SURFACE ROUGHNESS ON METASTABLE PITTING BEHAVIOR OF STAINLESS STEEL. J Chin Soc Corr Pro, 2002, 22(3): 158-161 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2002/V22/I3/158

[1]FrankelGS ,StockertL ,HunkelerF ,BoehniH .Metastablepittingofstainlessteel[J].Corrosion,1987,48:428
[2]PistoriusPC ,BursteinGT .Growthofcorrosionpitsonstainlesssteelinchloridesolutioncontainingdilutesulphate[J].Corros.Sci.,1992,33:1885
[3]PistoriusPC ,BursteinGT .Aspectsoftheeffectsofelectrolytecompositionontheoccurrenceofmetastablepittingonstainlesssteel[J].Corros.Sci.,1994,36:525
[4]WilliamsDE ,StewartJ ,BalkwillPH .Thenucleation,growthandstabilityofmicropitsinstainlesssteel[J].Corros.Sci.,1994,36:1213
[5]PrideST ,ScullyJR ,HudsonJL .Metastablepittingofaluminumandcriteriaforthetransitiontostablepitgrowth[J].J .Elec trochem.Soc.,1994,141:3028
[6]LaycockNJ,NewmanRC .Localizeddissolutionkinetics,saltfilmsandpittingpotentials[J].Corros.Sci.,1997,39:1771
[7]BursteinGT ,PistoriusPC .Surfaceroughnessandthemetastablepittingofstainlesssteelinchloridesolutions[J].Corrosion,1995,51:380
[8]ZuoY ,FuS ,Surfaceroughnessandmetastablepittingofamor phousnickelalloy[J].Corrosion,1998,54:313
[9]StewartJ ,WilliamsDE .Theinitiationofpittingcorrosiononausteniticstainlesssteel:ontheroleandimportanceofsulfideinclu sions[J].Corros.Sci.,1992,33:457
[10]BoehniH ,SuterT ,SchreyerA .Micro-andnanotechniquestostudylocalizedcorrosion[J].ElectrochemicaActa,1995,40:31
[11]ZuoY ,LatanisionRM .ThepittingcorrosionofamorphousNiCrFeSiBalloyinchloridesolution[J].Corros.Sci.,1993,34:1697
[12]ZuoY ,DuH ,XiongJ ,Statisticalcharacteristicsofmetastablepit tingof316stainlesssteel[J].J.Mater.Sci.Tech.,2000,16:286

[1]	冉斗, 孟惠民, 刘星, 李全德, 巩秀芳, 倪荣, 姜英, 龚显龙, 戴君, 隆彬. pH对14Cr12Ni3WMoV不锈钢在含氯溶液中腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2021, 41(1): 51-59.
[2]	左勇, 曹明鹏, 申淼, 杨新梅. MgCl₂-NaCl-KCl熔盐体系中金属Mg对316H不锈钢的缓蚀性能研究[J]. 中国腐蚀与防护学报, 2021, 41(1): 80-86.
[3]	王欣彤, 陈旭, 韩镇泽, 李承媛, 王岐山. 硫酸盐还原菌作用下2205双相不锈钢在3.5%NaCl溶液中应力腐蚀开裂行为研究[J]. 中国腐蚀与防护学报, 2021, 41(1): 43-50.
[4]	张浩, 杜楠, 周文杰, 王帅星, 赵晴. 模拟海水溶液中Fe³⁺对不锈钢点蚀的影响[J]. 中国腐蚀与防护学报, 2020, 40(6): 517-522.
[5]	马鸣蔚, 赵志浩, 荆思文, 于文峰, 谷义恩, 王旭, 吴明. 17-4 PH不锈钢在含SRB的模拟海水中的应力腐蚀开裂行为研究[J]. 中国腐蚀与防护学报, 2020, 40(6): 523-528.
[6]	赵柏杰, 范益, 李镇镇, 张博威, 程学群. 不同类型接触面对316L不锈钢缝隙腐蚀的影响[J]. 中国腐蚀与防护学报, 2020, 40(4): 332-341.
[7]	胡玉婷, 董鹏飞, 蒋立, 肖葵, 董超芳, 吴俊升, 李晓刚. 海洋大气环境下TC4钛合金与316L不锈钢铆接件腐蚀行为研究[J]. 中国腐蚀与防护学报, 2020, 40(2): 167-174.
[8]	秦越强, 左勇, 申淼. FLiNaK-CrF₃/CrF₂氧化还原缓冲熔盐体系对316L不锈钢耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2020, 40(2): 182-190.
[9]	何壮,王兴平,刘子涵,盛耀权,米梦芯,陈琳,张岩,李宇春. 316L和HR-2不锈钢在盐酸液膜环境中的钝化与点蚀[J]. 中国腐蚀与防护学报, 2020, 40(1): 17-24.
[10]	武栋才,韩培德. 中温时效处理对SAF2304双相不锈钢耐蚀性的影响[J]. 中国腐蚀与防护学报, 2020, 40(1): 51-56.
[11]	骆鸿,高书君,肖葵,董超芳,李晓刚. 磁控溅射工艺对CrN薄膜及其腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2019, 39(5): 423-430.
[12]	付安庆,赵密锋,李成政,白艳,朱文军,马磊,熊茂县,谢俊峰,雷晓维,吕乃欣. 激光表面熔凝对超级13Cr不锈钢组织与性能的影响研究[J]. 中国腐蚀与防护学报, 2019, 39(5): 446-452.
[13]	王标,杜楠,张浩,王帅星,赵晴. 304不锈钢点蚀产物对亚稳态点蚀萌生和稳态蚀孔生长的加速作用[J]. 中国腐蚀与防护学报, 2019, 39(4): 338-344.
[14]	孙晓光,韩晓辉,张星爽,张志毅,李刚卿,董超芳. 超低碳奥氏体不锈钢焊接接头耐腐蚀性及环保型化学钝化工艺研究[J]. 中国腐蚀与防护学报, 2019, 39(4): 345-352.
[15]	李雨,关蕾,王冠,张波,柯伟. 机械应力对不锈钢点蚀行为的影响[J]. 中国腐蚀与防护学报, 2019, 39(3): 215-226.

Viewed

Full text

Abstract

Cited

Shared

Discussed