稀硫酸中丙烯基硫脲对纳米工业纯铁腐蚀作用

中国腐蚀与防护学报

2010, Vol. 30

Issue (6): 433-436

研究报告

本期目录 | 过刊浏览

稀硫酸中丙烯基硫脲对纳米工业纯铁腐蚀作用

沈长斌¹,杨怀玉²,王胜刚³,龙康²,王福会²

1. 大连交通大学材料科学与工程学院大连 116028
2. 中国科学院金属研究所金属腐蚀与防护国家重点实验室沈阳 110016
3. 中国科学院金属研究所沈阳材料科学国家（联合）实验室沈阳 110016

CORROSIVE EFFECT BY ALLYLTHIOUREA OF BULK NANOCRYSTALLINE INGOT IRON IN AMBIENT DILUTED ACIDIC SULPHATE SOLUTION

SHEN Changbin¹, YANG Huaiyu², WANG Shenggang³, LONG Kang², WANG Fuhui²

1. School of Materials Science & Engineering, Dalian Jiaotong University, Dalian 116028
2. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
3. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

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摘要: 在室温0.1 mol/L H₂SO₄+0.25 mol/L Na₂SO₄ 溶液中，研究了添加不同浓度丙烯基硫脲（ATU）对块体纳米晶工业纯铁(BNII)（通过严重塑性变形获得）和普通工业纯铁（CPII）电化学腐蚀行为的影响。当浸泡5 min后, CPII 的 Nyquist谱图上出现感抗弧，而BNII的Nyquist谱图为单阻抗谱。随着时间延长至2 h，BNII的Nyquist 谱图上出现两个时间常数；CPII的阻抗复平面上出现一圆心下偏的单阻抗谱。

关键词 ：块体纳米晶工业纯铁(BNII), 丙烯基硫脲(ATU), 硫酸

Abstract：In the corrosive solution 0.1 mol/L H₂SO₄+0.25 mol/L Na₂SO₄, the effect of allyl-thiourea (ATU) on the corrosion behaviors of bulk nanocrystalline ingot iron (BNII) was studied. Inhibited by ATU at ambient temperature, for CPII, when immersion time as short as 5 min, an inductive loop appeared at different concentrations at the Nyquist complex planes; for BNII, only a simple capacitance loop appeared in the Nyquist plot at the same period. With the elongation of the immersion time, for BNII, two time constants appeared in the Nyquist plot; For CPII, the impedance spectrum shows a slightly depressed semicircular shape.

Key words： bulk nanocrystalline ingot iron (BNIN) allyl-thiourea (ATU) acidic sulphate solution

收稿日期: 2009-03-18

基金资助:

国家自然科学基金项目(50501023)资助

通讯作者: 沈长斌 E-mail: shencb@djtu.edu.cn

作者简介: 沈长斌，男，1972出生，副教授，研究方向为金属材料腐蚀与防护

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引用本文:

沈长斌,杨怀玉,王胜刚,龙康,王福会. 稀硫酸中丙烯基硫脲对纳米工业纯铁腐蚀作用[J]. 中国腐蚀与防护学报, 2010, 30(6): 433-436.
CHEN Zhang-Bin, YU Fu-Hui, YANG Huai-Yu, YU Qing-Gang, MANG Kang. CORROSIVE EFFECT BY ALLYLTHIOUREA OF BULK NANOCRYSTALLINE INGOT IRON IN AMBIENT DILUTED ACIDIC SULPHATE SOLUTION. J Chin Soc Corr Pro, 2010, 30(6): 433-436.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2010/V30/I6/433

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