[1]韦颜祥,闫 康,杨 超,等.doi: 10.3969/j.issn.1001-3849.2026.01.009NaOH溶液温度对316L不锈钢腐蚀行为的影响[J].电镀与精饰,2026,(01):72-78.
　WEI Yanxiang,YAN Kang,YANG Chao,et al.Effects of NaOH solution temperature on corrosion behavior of 316L stainless steel[J].Plating & Finishing,2026,(01):72-78.
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doi: 10.3969/j.issn.1001-3849.2026.01.009NaOH溶液温度对316L不锈钢腐蚀行为的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年01
页码:
72-78
栏目:
出版日期:
2026-01-31

文章信息/Info

Title:
Effects of NaOH solution temperature on corrosion behavior of 316L stainless steel
作者:
韦颜祥1; 2; 闫 康1; 杨 超1; 李 昂1; 阿达依?谢尔亚孜旦1
阿达依?谢尔亚孜旦1(1. 新疆大学 机械工程学院,新疆 乌鲁木齐 830047 ;2. 河南科技职业大学 机电工程学院,河南 周口市 466000)
Author(s):
WEI Yanxiang1; 2;  YAN Kang1;  YANG Chao1;  LI Ang1;  ADAYI Xieeryazidan1
(1. College of Intelligent Manufacturing Modern Industry, Xinjiang University, Urumqi 830047, China; 2. College of Mechanical and Electrical Engineering, Henan Vocational University of Science and Technology, Zhoukou 466000, China)
关键词:
不锈钢; NaOH; 腐蚀; 电化学
Keywords:
stainless steel;  sodium hydroxide;  corrosion;  electrochemistry
分类号:
TG174.3；TQ050.9
文献标志码:
A
摘要:
在化工企业生产NaOH强碱的工艺过程中，316L不锈钢会受到不同温度NaOH溶液的腐蚀作用，为深入分析这一腐蚀损伤问题，本文采用电化学阻抗谱、极化曲线、电容测量等技术研究了316L不锈钢在不同温度NaOH溶液中的腐蚀电化学性能和机理，并通过扫描电子显微镜、能量色散光谱分析等方法对其表面形貌以及化学成分进行了分析。结果表明，316L不锈钢的极化曲线在阳极区具有相似的腐蚀反应过程，存在明显的钝化区和二次钝化现象；电化学阻抗测试结果显示材料表面和溶液界面存在弥散效应，电荷转移电阻Rct会随溶液温度的升高而减小；Mott-Schottky曲线分析显示，316L不锈钢表面的钝化膜在相对应的电位区间内分别呈现出p型和n型半导体特性；腐蚀形貌受钢中夹杂物的影响，并且随着温度的提高腐蚀更容易沿着晶界延伸。
Abstract:
In the process of producing NaOH strong alkali in chemical enterprises, 31 6L stainless steel will be corroded by NaOH solutions at different temperatures. To further analyze this corrosion damage problem, this paper uses electrochemical impedance spectroscopy, polarization curve, capacitance measurement and other techniques to study the corrosion electrochemical performance and mechanism of 31 6L stainless steel in NaOH solutions at different temperatures. The surface morphology and chemical composition of 31 6L stainless steel were analyzed by scanning electron microscopy, energy dispersive spectroscopy and other methods. The results show that the polarization curve of 31 6L stainless steel has a similar corrosion reaction process in the anode region, with obvious passivation zone and secondary passivation phenomenon. The electrochemical impedance test results show that there is a diffusion effect at the interface between the material surface and the solution, and the charge transfer resistance Rct decreases with the increase of solution temperature. Mott Schottky curve analysis shows that the passivation film on the surface of 31 6L stainless steel exhibits p-type and n-type semiconductor characteristics in the corresponding potential range. The corrosion morphology is influenced by inclusions in the steel, and as the temperature increases, corrosion tends to propagate along grain boundaries.

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更新日期/Last Update: 2026-01-16