船用高强钢焊接接头的低温海水腐蚀性能研究

doi:10.11902/1005.4537.2026.152

中国腐蚀与防护学报 DOI: 10.11902/1005.4537.2026.152

金灵好, 刘士琛, 黄诗雨, 许佳程, 谭伟, 俞文凯, 郭娜, 刘涛

上海海事大学海洋科学与工程学院, 201306

Research on the Low-temperature Seawater Corrosion Performance of Welded Joints of High-strength Steel for Marine Applications

, 201306,

引用本文:

金灵好, 刘士琛, 黄诗雨, 许佳程, 谭伟, 俞文凯, 郭娜, 刘涛. 船用高强钢焊接接头的低温海水腐蚀性能研究[J]. 中国腐蚀与防护学报, 10.11902/1005.4537.2026.152.

全文: PDF(5763 KB)

摘要: 极地航线开发对船用钢焊接结构在低温海水环境中的耐蚀性提出了更高要求。为明确10CrNi3MoV低合金高强船用钢焊接接头的低温腐蚀行为，本文以焊缝区、复合区和母材区为研究对象，采用OM、SEM、EDS、XRD、电化学测试、静态浸泡失重实验及三维轮廓表征，分析不同区域的显微组织、电化学响应、腐蚀速率、腐蚀产物及局部腐蚀形貌。结果表明，焊接接头不同区域组织差异明显，焊缝区主要为铁素体/贝氏体型组织，并伴有少量块状或岛状组元；复合区组织可见贝氏体、马氏体-奥氏体岛及碳化物等组元共存；母材区主要为回火索氏体组织，并伴有细小弥散析出相。电化学结果显示，焊缝区、复合区和母材区的自腐蚀电流密度分别为3.97×10-6 A/cm2、1.06×10-5 A/cm2和5.65×10-6 A/cm2，复合区在极化条件下腐蚀敏感性相对较高；但EIS结果显示三者低频阻抗及Rf+Rct接近，说明整体界面阻抗差异有限。静态浸泡结果表明，0℃模拟海水中各区域平均腐蚀速率随浸泡时间延长而降低并趋于接近。腐蚀产物主要由铁氧化物和羟基氧化铁组成，后期局部出现开裂、疏松和剥落。三维轮廓结果显示，浸泡14 d后复合区最大蚀坑深度和表面算术平均高度分别达18.5 μm和0.55 μm，局部腐蚀损伤最为明显。综合分析认为，复合区是10CrNi3MoV钢焊接接头在低温海水环境中相对薄弱的腐蚀敏感区域。

关键词 ： 10CrNi3MoV, 焊接接头, 低温海水腐蚀, 电化学行为, 局部腐蚀

Abstract：The development of polar shipping routes has put forward higher requirements for the corrosion resistance of marine steel welding structures in low-temperature seawater environments. To clarify the low-temperature corrosion behavior of 10CrNi3MoV low-alloy high-strength marine steel welding joints, this paper takes the weld zone, heat-affected zone and base metal zone as the research objects, and uses OM, SEM, EDS, XRD, electrochemical tests, static immersion weight loss experiments and three-dimensional contour characterization to analyze the microstructure, electrochemical response, corrosion rate, corrosion products and local corrosion morphology of different zones. The results show that the microstructure of different zones of the welding joint is significantly different. The weld zone is mainly ferrite/bainite type structure, accompanied by a small amount of blocky or island-like components; the heat-affected zone microstructure shows bainite, martensite-austenite islands and carbides coexisting; the base metal zone is mainly tempered sorbite structure, accompanied by fine and dispersed precipitates. The electrochemical results show that the self-corrosion current densities of the weld zone, heat-affected zone and base metal zone are 3.97×10-6 A/cm2, 1.06×10-5 A/cm2 and 5.65×10-6 A/cm2, respectively, and the heat-affected zone has relatively higher corrosion sensitivity under polarization conditions; however, the EIS results show that the low-frequency impedance and Rf+Rct of the three are close, indicating that the overall interface impedance difference is limited. The static immersion results show that the average corrosion rate of each zone in 0℃ simulated seawater decreases and tends to be close with the extension of immersion time. The corrosion products are mainly composed of iron oxides and hydroxides of iron. Later, local cracking, loosening and peeling occur. The three-dimensional contour results show that after 14 days of immersion, the maximum pit depth and surface arithmetic mean height of the heat-affected zone reach 18.5 μm and 0.55 μm, respectively, and the local corrosion damage is the most obvious. Comprehensive analysis suggests that the heat-affected zone is the relatively weak and corrosion-sensitive area of 10CrNi3MoV steel welding joints in low-temperature seawater environments.

Key words： 10CrNi3MoV welded joint low-temperature seawater corrosion electrochemical behavior local corrosion

收稿日期: 2026-05-15

基金资助:中国科学技术协会青年人才托举工程(YESS20240747); 上海市科学技术委员会自然科学基金(24ZR1427800)

	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
	金灵好
	刘士琛
	黄诗雨
	许佳程
	谭伟
	俞文凯
	郭娜
	刘涛
44.8K

链接本文:

https://www.jcscp.org/CN/Y0/V/I/0

[1]	戴念维, 窦欣懿, 刘华剑, 冷滨. 增材制造合金在核能领域应用中的腐蚀研究进展[J]. 中国腐蚀与防护学报, 2026, 46(1): 15-24.
[2]	张泽群, 骆鑫杰, 刘鹏飞, 董凯, 卓先勤, 吴俊升, 张博威. TiC颗粒对激光粉末床熔融Al-Mg-Sc-Zr合金的微观结构与腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2026, 46(1): 92-102.
[3]	王立芳, 商孟超, 高希钰, 刘贵昌, 孙文. B30铜镍合金原始膜对其腐蚀的影响[J]. 中国腐蚀与防护学报, 2025, 45(6): 1575-1588.
[4]	李科, 李天雷, 曹晓燕, 姜流, 王雅熙, 肖泽渝, 钟显康. 316L不锈钢焊接接头在含S-H₂S环境中的腐蚀行为[J]. 中国腐蚀与防护学报, 2025, 45(6): 1725-1733.
[5]	佟向瑜, 徐玮辰, 王秀通, 王优强, 段继周. 常用钛合金焊接接头显微组织结构及对材料性能的影响[J]. 中国腐蚀与防护学报, 2025, 45(5): 1161-1174.
[6]	胡娜, 彭文山, 郭为民, 刘天楠, 段体岗, 刘少通. 高强铝合金焊接接头力学-电化学腐蚀行为与退化规律研究[J]. 中国腐蚀与防护学报, 2025, 45(4): 965-974.
[7]	麻衡, 王中学, 逄昆, 张庆普, 崔中雨. 低合金钢中腐蚀活性夹杂物诱发局部腐蚀萌生行为研究[J]. 中国腐蚀与防护学报, 2025, 45(4): 1005-1013.
[8]	张国庆, 余直霞, 王岳松, 王智, 金正宇, 刘宏伟. 海上超临界二氧化碳环境中含水率和温度对A106钢腐蚀行为影响研究[J]. 中国腐蚀与防护学报, 2025, 45(4): 1061-1069.
[9]	燕冰川, 曾云鹏, 张宁, 史显波, 严伟. 石油管材用含Cu钢焊接接头的微生物腐蚀研究[J]. 中国腐蚀与防护学报, 2025, 45(2): 479-488.
[10]	翟熙伟, 刘士一, 王丽, 贾瑞灵, 张慧霞. 载荷对5383铝合金焊接接头电化学腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2025, 45(2): 515-522.
[11]	韩宇龙, 李健, 郭丽雅, 杨边疆, 陆恒昌, 韦习成, 董瀚. 螺纹钢中MnS夹杂物诱发的局部腐蚀行为[J]. 中国腐蚀与防护学报, 2024, 44(5): 1255-1262.
[12]	赵连红, 王英芹, 刘元海, 何卫平, 王浩伟. 四种飞机起落架用钢在模拟海水中的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2024, 44(5): 1263-1273.
[13]	刘久云, 董立谨, 张言, 王勤英, 刘丽. 油气田异种金属焊接接头硫化物应力腐蚀开裂研究进展[J]. 中国腐蚀与防护学报, 2024, 44(4): 863-873.
[14]	吴洋, 安易强, 王力伟, 崔中雨. 镁铝合金在模拟低温条件下大气腐蚀行为研究[J]. 中国腐蚀与防护学报, 2024, 44(4): 1001-1010.
[15]	杜广, 芦国强, 邓龙辉, 蒋佳宁, 曹学强. 铝含量对镍铝合金在稀硫酸溶液中的腐蚀行为影响[J]. 中国腐蚀与防护学报, 2024, 44(4): 1011-1021.

Viewed

Full text

Abstract

Cited

Shared

Discussed