表层受损的氮化904L不锈钢在氢氟酸中的腐蚀行为
Corrosion Behaviour of Nitrided 904L Stainless Steel with Damaged Surface in Hydrofluoric Acid
摘 要
通过显微硬度仪制备表层压痕，利用光学显微镜（OM）、扫描电镜（SEM）和激光扫描共聚焦显微镜（CLSM）等分析表层有无受损的氮化904L不锈钢在1 mol/L HF溶液中的腐蚀行为。结果表明：无受损氮化层对基体具有良好的保护作用；受损氮化层不会随腐蚀的进行发生大面积脱落，但在长时间侵蚀作用下，氮化层裂纹区域优先发生腐蚀，氮化试样的腐蚀速率低于空白试样的。
氮化
氢氟酸
表层受损
904L stainless steel
nitridation
hydrofluoric acid
damaged surface
Abstract
Surface indentations were prepared by microhardness tester. Using optical microscope (OM), scanning electron microscope (SEM) and confocal laser scanning microscope (CLSM), the corrosion behavior of nitrided 904L stainless steel with and without damaged surface in 1 mol/L HF solution were analyzed. The results show that the undamaged nitride layer had a good protective effect on the the substrate. The damaged nitrite layer would not fall off in a large area as the corrosion progressed. Corrosion occurred preferentially in the crack area of nitride layer under the action of long-term erosion. The corrosion rate of nitrited sample was lower than that of blank sample.
中图分类号 TG178 DOI 10.11973/fsyfh-202106004
所属栏目 试验研究
基金项目 国家自然科学基金（51801038，51661006，51774103，51974097）；贵州省百层次创新型人才（20164014）；贵州省科技计划项目（[2018]5781，20175656，20175788，20191414，20192162）
收稿日期 2020/11/12
修改稿日期
网络出版日期
作者单位点击查看
联系人作者石维(wshi@gzu.edu.cn)
引用该论文: SHI Wei,JIANG Ruyi,FAN Kailun,SONG Qinghua,XIANG Song. Corrosion Behaviour of Nitrided 904L Stainless Steel with Damaged Surface in Hydrofluoric Acid[J]. Corrosion & Protection, 2021, 42(6): 20
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参考文献
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【3】冯晓庆,蒋如意,陈绪宏,等. 气压对904L奥氏体不锈钢低温离子渗氮组织与耐蚀性能的影响[J]. 材料热处理学报,2020,41(3):156-162.
【4】冀宣名,向嵩,蒋如意,等. 表面镀镍层对904L在氢氟酸溶液中耐蚀性的影响[J]. 材料热处理学报,2020,41(1):110-116.
【5】JIANG R Y,ZOU G B,SHI,et al. Corrosion behavior of plasma-nitrided 904L austenitic stainless steel in hydrofluoric acid[J]. Journal of Materials Engineering and Performance,2019,28(3):1863-1872.
【6】BANDY R,ROOYEN D V.Properties of nitrogen-containing stainless alloy designed for high resistance to pitting[J]. Corrosion,1985,41(4):228-233.
【7】CHRISTIANSEN T,SOMERS M A J. Low temperature gaseous nitriding and carburising of stainless steel[J]. Surface Engineering,2005,21(5/6):445-455.
【8】FERNANDES F A P,HECK S C,PEREIRA R G,et al. Ion nitriding of a superaustenitic stainless steel:wear and corrosion characterization[J]. Surface and Coatings Technology,2010,204(18/19):3087-3090.
【9】FOSSATI A,BORGIOLI F,GALVANETTO E,et al. Corrosion resistance properties of glow-discharge nitrided AISI 316L austenitic stainless steel in NaCl solutions[J]. Corrosion Science,2006,48(6):1513-1527.
【10】FOSSATI A,GALVANETTO E,BACCI T, et al. Improvement of corrosion resistance of austenitic stainless steels by means of glow-discharge nitriding[J]. Corrosion Reviews,2011,29(5/6):209-221.
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【12】CUI Z Y,LIU Z Y,WANG L W,et al. Effect of plastic deformation on the electrochemical and stress corrosion cracking behavior of X70 steel in near-neutral pH environment[J]. Materials Science and Engineering:A,2016,677:259-273.
【13】MENTHE E,BULAK A,OLFE J,et al. Improvement of the mechanical properties of austenitic stainless steel after plasma nitriding[J]. Surface and Coatings Technology,2000,133/134:259-263.
【14】LI Y,WANG L,SHEN L,et al. Plasma nitriding of 42CrMo low alloy steels at anodic or cathodic potentials[J]. Surface & Coatings Technology,2010,204(15):2337-2342.
【15】YANG W J,ZHANG M,ZHAO Y H,et al. Enhancement of mechanical property and corrosion resistance of 316L stainless steels by low temperature arc plasma nitriding[J]. Surface and Coatings Technology,2016,298:64-72.
【16】BABA H,KODAMA T,KATADA Y. Role of nitrogen on the corrosion behavior of austenitic stainless steels[J]. Corrosion Science,2002,44(10):2393-2407.
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