欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了研究船舶与海洋工程结构在载荷和腐蚀环境联合作用下的腐蚀损伤规律,通过电化学测试技术研究了弹性应力对Q235B钢在质量分数为3.5%NaCl溶液中的腐蚀电位、动电位极化曲线、线性极化电阻和电化学阻抗谱的影响规律;同时,利用接触角测量技术研究了弹性应力对金属在腐蚀介质中界面张力的影响.研究结果表明：随着弹性应力的增大,Q235B钢在3.5%NaCl溶液中的腐蚀电位明显负移,腐蚀速率显著增大,根据电化学测试结果建立了腐蚀速率与应力关系模型;界面张力与接触角随着应力的增大而显著减小,因此可以利用金属材料在环境介质中的界面张力研究力学-化学效应问题.
英文摘要：
In order to study the corrosion cumulative damage of ship and marine structures under the combined effects of loading and corrosion conditions, the effects of elastic stress on corrosion potential, potentiodynamic polarization characteristics, linear polarization resistance and electrochemical impedance spectra for Q235B steel in 3.5% NaCl solution were investigated by employing the electrochemical measurement techniques. Meanwhile, the impact of elastic stress on the interracial tension between the metal and solution was also studied by using the contact angle measurement technique. Experimental results show that elastic stress can cause negative shift of corrosion potential and accel- erate corrosion of steel significantly. Based on the results of electrochemical measurements, a model of elastic stress on corrosion rate was established. Both interfacial tension and surface contact angle de- crease significantly with the increase of stress level, and thus the interracial tension between metal and solution can be applied to the study of mechano-chemical effect.
同期刊论文项目
同项目期刊论文
Using a time-domian higher-order boundary element method to simulate wave and current diffraction fr
Identification of hydrodynamic coefficients from experiment of vortex-induced vibration of slender r
Laboratory observations of wave evolution, modulation and blocking due to spatially varying opposing
Laboratory tests of vortex-induced vibrations of a long flexible riser pipe subjected to uniform flo
A three-index estimator based on active thermometry and a novel monitoring system of scour under sub
Application of Multiscale Fiber Optical Sensing Network Based on Brillouin and Fiber Bragg Grating S
Numerical analysis on ultimate pullout bearing capacity of drag embedment anchor based on elastic-pl
Scour monitoring system of subsea pipeline using distributed Brillouin optical sensors based on acti
An unstructured FEM model based on Boussinesq equations and its application to the calculation of mu
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 1: Two-dimensio
A numerical study of whole ship structural damage resulting from close-in underwater explosion shock
Active Thermometry Based DS18B20 Temperature Sensor Network for Offshore Pipeline Scour Monitoring U
Experimental investigation of the interaction of multidirectional irregular waves with a large cylin
Time-domain numerical and experimental analysis of hydroelastic response of a very large floating st
Research of concrete residual strains monitoring based on WLI and FBG following exposure to freeze-t
Numerical studies on sloshing in rectangular tanks using a tree-based adaptive solver and experiment
Numerical and experimental analysis of hydroelastic response on a very large floating structure edge
Development of a regional coastal management decision-aided system. Part A: Establishment of an auto
Vortex shedding from a two-dimensional cylinder beneath a rigid wall and a free surface according to
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 2: Three-dimens
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part II: Experime
Research on design scheme and hydrodynamic performance of floating body based on sandglass-type FDPS
Numerical and experimental analysis on motion performance of new sandglass-type floating body in wav
Direct Time Domain Numerical Analysis of Transient Behavior of a VLFS during Unsteady External Loads
Coupled wind-wave time domain analysis of floating offshore wind turbine based on Computational Flui
Thickness distribution and extent of sea ice and snow in Prydz Bay and surrounding waters observed i
Further Application of Surface Capturing Method and Cartesian Cut Cell Mesh on Hydroelastic Water-En
Application of support vector machine for pattern classification of active thermometry-based pipelin
Coupled control of the horizontal and vertical plane motions of a semi-submersible platform by a dyn
BP neural network recognition algorithm for scour monitoring of subsea pipelines based on active the
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part I: Formulati
Numerical study of transient harbor resonance induced by solitary waves resonance induced by solitar
期刊信息
位置：