Combined experimental and simulation study on corrosion behavior of B10 copper-nickel alloy welded joint under local turbulence

被引：6

作者：

Zhang, Da-lei ^{[1
]}

Liu, Ran ^{[1
,2
]}

Liu, Ying-shuang ^{[1
,2
]}

Xing, Shao-hua ^{[2
]}

He, Zong-hao ^{[1
]}

Qian, Yao ^{[1
]}

Liu, Jin-zeng ^{[1
]}

Dou, Xiao-hui ^{[1
]}

Zhang, Xin-wei ^{[1
]}

机构：

[1] China Univ Petr East China, Sch Mat Sci & Engn, Qingdao 266580, Shandong, Peoples R China

[2] Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Qingdao 266237, Shandong, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2023年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Array electrode technology; Welded joint; Corrosion; COMSOL Multiphysics simulation; Seawater; FLOW-ACCELERATED CORROSION; CARBON-STEEL; PIPELINE; EROSION;

D O I：

10.1007/s42243-023-01032-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The corrosion behavior of B10 copper-nickel alloy welded joints in seawater pipeline system was analyzed under local turbulence induced by weld residual height. The corrosion behavior was evaluated by array electrode technology, morphology and elemental characterization, and COMSOL Multiphysics simulation. The results provide a theoretical basis for the corrosion and leakage of B10 alloy in seawater pipeline under the action of turbulence. The results show that residual height-induced turbulence exhibits a significant effect on the corrosion behavior in different areas of welded joints in B10 alloy. Turbulence can damage some surfaces, causing polarity deflection followed by acceleration of corrosion, or it is easier to form a protective film to slow down corrosion. COMSOL Multiphysics results show that the shear rate and turbulent kinetic energy increase linearly with the increase in residual height and velocity. The corrosion behavior of alloy surface is influenced by controlling the mass transfer rate and surface state.

引用

页码：1598 / 1612

页数：15

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