低温海水环境船舶典型材料电化学特性研究

周彤; 余定峰; 郑攀峰; 杨帅

doi:10.11993/j.issn.2096-3920.2023-0058

低温海水环境船舶典型材料电化学特性研究

doi: 10.11993/j.issn.2096-3920.2023-0058

武汉第二船舶设计研究所海洋电磁探测与控制湖北省重点实验室, 湖北武汉, 430205

基金项目: 国防科技基础加强计划技术领域基金资助项目(2022-JCJQ-**-****)

详细信息

作者简介:
周彤：周　彤(1991-), 女, 硕士, 工程师, 主要研究方向为舰船电磁场应用及防护

中图分类号: TJ630.34; U674
计量
- 文章访问数: 124
- HTML全文浏览量: 53
- PDF下载量: 32
- 被引次数: 0
出版历程
- 收稿日期: 2023-05-15
- 修回日期: 2023-07-18
- 录用日期: 2023-07-19
- 网络出版日期: 2023-07-25

Electrochemical Characteristics of Typical Ship Materials in Low-Temperature Seawater

Wuhan Second Ship Design and Research Institute, Hubei Key Laboratory of Marine Electromagnetic Detection and Control, Wuhan 430205, China

摘要

摘要: 船舶金属材料在海洋环境中的电化学特性是船舶电场特性产生过程中的重要影响因素, 长期以来, 国内多聚焦于常温海水环境下的金属材料电化学性能研究, 对低温海水环境下的金属材料电化学特性研究较少。文中针对3种典型的船舶主体材料, 开展了不同温度及盐度影响试验, 对比分析其在低温海水环境下的极化电位、极化曲线及极化电阻, 总体结果表明金属材料的开路电位随海水温度的降低而增大, 自腐蚀电位随着海水温度的降低而正移, 随着海水温度的降低溶解活化程度变低。文中工作可为进一步研究电场特征控制和分析评估提供基础理论参考。
- 低温海水环境 /
- 船舶材料 /
- 盐度 /
- 极化曲线
Abstract: The electrochemical characteristic of ship metal materials in marine environments is an important factor affecting the generation of ship electric field characteristics. For a long time, researchers have mainly focused on the electrochemical characteristics of metal materials in normal-temperature seawater but paid less attention to the electrochemical characteristics of metal materials in low-temperature seawater. For three typical ship materials, experiments were designed based on the influence of different temperatures and salinity changes, and the polarization potential, polarization curve, and polarization resistance were compared in the low-temperature seawater. The results show that with the decrease in seawater temperature, the open circuit potential of metal materials and self-corrosion potential increase, but the degree of dissolution activation decreases. The proposed method may provide a reference for the study of electric field characteristic control and analysis and evaluation.
- low temperature seawater /
- ship materials /
- salinity /
- polarization curve

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图 1 试验件实物图

Figure 1. Photograph of test piece

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图 2 测试系统连接示意图

Figure 2. Connection diagram of test system

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图 3 不同海水温度下高强钢1#极化曲线(海水盐度0.35%)

Figure 3. Polarization curves of high-strength steel 1# at different seawater temperatures(0.35% salinity)

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图 4 不同海水温度下高强钢1#极化曲线(海水盐度2%)

Figure 4. Polarization curves of high-strength steel 1# at different seawater temperatures (2% salinity)

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图 5 不同海水温度下高强钢1#极化曲线(海水盐度3.5%)

Figure 5. Polarization curves of high-strength steel 1# at different seawater temperatures (3.5% salinity)

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图 6 不同海水温度下高强钢2#极化曲线(海水盐度0.35%)

Figure 6. Polarization curves of high-strength steel 2# at different seawater temperatures (0.35% salinity)

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图 7 不同海水温度下高强钢2#极化曲线(海水盐度2%)

Figure 7. Polarization curves of high-strength steel 2# at different seawater temperatures (2% salinity)

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图 8 不同海水温度下高强钢2#极化曲线(海水盐度3.5%)

Figure 8. Polarization curves of high-strength steel 2# at different seawater temperatures (3.5% salinity)

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图 9 不同海水温度下铜合金极化曲线(海水盐度0.35%)

Figure 9. Polarization curves of copper alloy at different seawater temperatures(0.35% salinity)

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图 10 不同海水温度下铜合金极化曲线(海水盐度2%)

Figure 10. Polarization curves of copper alloy at different seawater temperatures(2% salinity)

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图 11 不同海水温度下铜合金极化曲线(海水盐度3.5%)

Figure 11. Polarization curves of copper alloy at different seawater temperatures(3.5% salinity)

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图 12 温度0 ℃、盐度0.35%海水条件下高强钢1#电流-电位曲线

Figure 12. Current-potential curve of high-strength steel 1# in seawater of 0 ℃ and 0.35% salinity

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表 1 环境因素影响试验设计

Table 1. Environmental factor affecting test design

序号	试验件材料	温度/℃	盐度/%
1	高强钢1#	0	0.35
2			2.00
3			3.50
4		8	0.35
5			2.00
6			3.50
7		25	0.35
8			2.00
9			3.50
10	高强钢2#	0	0.35
11			2.00
12			3.50
13		8	0.35
14			2.00
15			3.50
16		25	0.35
17			2.00
18			3.50
19	铜合金	0	0.35
20			2.00
21			3.50
22		8	0.35
23			2.00
24			3.50
25		25	0.35
26			2.00
27			3.50

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表 2 不同环境下高强钢1#开路电位

Table 2. Open circuit potential of high-strength steel 1# under different environments

序号	盐度/%	温度/℃	开路电位/V
1	0.35	0	−0.557 621 6
2		8	−0.577 322 2
3		25	−0.632 556 3
4	2.00	0	−0.540 334 3
5		8	−0.562 500 1
6		25	−0.587 693 3
7	3.50	0	−0.550 457 5
8		8	−0.563 194 1
9		25	−0.628 237 7

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表 3 不同环境下高强钢2#开路电位

Table 3. Open circuit potential of high-strength steel 2# under different environments

序号	盐度/%	温度/℃	开路电位/V
1	0.35	0	−0.555 202 7
2		8	−0.564 018 2
3		25	−0.597 781 4
4	2.00	0	−0.525 225 0
5		8	−0.533 390 5
6		25	−0.559 813 5
7	3.50	0	−0.543 708 0
8		8	−0.550 279 3
9		25	−0.597 205 3

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表 4 不同环境下铜合金开路电位

Table 4. Open circuit potential of copper alloy under different environments

序号	盐度/%	温度/℃	开路电位/V
1	0.35	0	−0.195 224 0
2		8	−0.234 144 3
3		25	−0.208 928 6
4	2.00	0	−0.273 376 7
5		8	−0.265 310 0
6		25	−0.281 084 6
7	3.50	0	−0.363 952 3
8		8	−0.309 637 3
9		25	−0.293 071 4

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表 5 不同环境下高强钢1#极化电阻

Table 5. Polarization resistance of high-strength steel 1# under different environments

序号	盐度/%	温度/℃	极化电阻/(Ω/cm²)
1	0.35	0	65.100
2		8	61.425
3		25	79.074
4	2.00	0	17.975
5		8	22.314
6		25	22.824
7	3.50	0	15.611
8		8	14.575
9		25	14.518

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表 6 不同环境下高强钢2#极化电阻

Table 6. Polarization resistance of high-strength steel 2# under different environments

序号	盐度/%	温度/℃	极化电阻/(Ω/cm²)
1	0.35	0	54.665
2		8	74.629
3		25	84.965
4	2.00	0	20.903
5		8	19.827
6		25	19.032
7	3.50	0	12.722
8		8	14.556
9		25	18.837

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表 7 不同环境下铜合金极化电阻

Table 7. Polarization resistance of copper alloy under different environments

序号	盐度/%	温度/℃	极化电阻/(Ω/cm²)
1	0.35	0	101.170
2		8	154.480
3		25	124.640
4	2.00	0	30.878
5		8	21.915
6		25	28.046
7	3.50	0	19.860
8		8	16.229
9		25	16.390

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表 8 不同环境下金属电位差

Table 8. Metal potential difference under different environments

序号	金属材质		盐度/%	温度/℃	电位差/V
1	高强钢1#	铜合金	0.35	0	0.362 40
2				8	0.343 18
3				25	0.423 63
4			2.00	0	0.266 96
5				8	0.297 19
6				25	0.306 61
7			3.50	0	0.186 51
8				8	0.253 56
9				25	0.335 17
10	高强钢2#	铜合金	0.35	0	0.359 98
11				8	0.329 87
12				25	0.388 85
13			2.00	0	0.251 85
14				8	0.268 08
15				25	0.278 73
16			3.50	0	0.179 76
17				8	0.24064
18				25	0.30413

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