Simulation device for metal corrosion test in dynamic environment

Abstract

The invention provides a device system for simulating a metal corrosion test in a dynamic seawater environment and belongs to simulation tests and detection technologies in the field of metal corrosion. The device is composed of a refrigeration region, a test region, a temperature control region and a water pump region, wherein the temperature of seawater in the refrigeration region is kept constant, and the temperature change can be regulated and controlled; while storing water, the water pump region is capable of supplying power to seawater so as to enable the seawater to scour samples at a certain speed; the samples are placed in the test region and an electrochemical test is performed; by virtue of design of a sample fixture, the relative angle of the samples and waterflow and the sample vibration frequency can be regulated and controlled. According to the device, corrosion behavior of ships in dynamic seawater is researched from four aspects of temperature, seawater speed, scouring angle and ship vibration frequency; in combination with an electrochemical test technology, real-time continuous monitoring is performed on a whole dynamic corrosion process, so that data of material corrosion research is relatively more stereoscopic and accurate, various materials and protective measures can be better evaluated, reference is provided for development, application and protection for novel ship materials.

Description

technical field [0001] The invention belongs to the field of metal corrosion research, in particular to the research of a metal corrosion simulation device and an experimental method in a dynamic environment. Background technique [0002] Metal materials are subject to various forms of corrosion in severe marine environments. It is estimated that the economic loss caused by metal corrosion in my country exceeds 200 billion yuan every year. These losses waste materials, cause pollution of the marine environment, and bring huge losses to the national economy. [0003] Metal materials are in a dynamic marine environment, and the flowing seawater causes erosion corrosion and cavitation corrosion to occur. This kind of corrosion has a long period of influence on materials and complex influencing factors, which bring certain challenges to the performance evaluation of marine materials. People generally adopt static immersion test when simulating this situation. The advantage of...

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Problems solved by technology

The vibration of the hull will lead to problems such as fatigue damage and instrument misalignment, and the impact on the corrosion of hull materials also needs to be studied

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