Friction corrosion
To study the friction corrosion mechanism of the tool
Various factors lead to material degradation
Friction corrosion process involves the relative motion of the mechanical and electrochemical interactions between objects.Friction corrosion过程中的力学成分通常是滑动磨损、磨损、气蚀、微动磨损、摩擦氧化和固体颗粒侵蚀。了解摩擦腐蚀机制对于研究和开发新型材料具有重要意义，这些材料的应用涉及到机械和电化学介质在工程部件上的同时作用。此类研究可为汽车、生物医学、化学、食品加工、地热、海洋、采矿和石化行业带来巨大利益，可减少材料损失并提高产品性能和可靠性。
Applications: copper friction corrosion
The test method
Recently, copper was elected in sodium chloride solution friction corrosion test research of model material.Alumina ball as friction corrosion test contrast material.
Electrochemical polarization test using the standard Ag/AgCl reference electrode and Pt counter electrode.Friction in the process of the corrosion test, with/without sliding wear was carried out under the condition of electrochemical measurement.Using the electrochemical polarization test data for chemical contribution to copper degradation (KC).With/without cathodic protection, direct measurement of wear scar after tests to obtain mechanical components (KMDegradation) in the process of friction corrosion to copper's contribution.
Take KC/ K.MThe ratio of the available parameters (factor).Friction corrosion过程中的降解机制由 ξ 值确定。该值表明在特定摩擦腐蚀过程中哪个过程更占优势。
When the factor value is less than 0.1, the wear is the most important factor in the material degradation.At the other extreme, that is, when the factor value is greater than 10, the corrosion was dominant in the material degradation process.For intermediate values between two extremes, wear and corrosion has a significant influence on the material loss, but the influence of one of the little older than the other.
The results of
Copper chloride medium friction corrosion factor value is 0.18.According to the linear graph, copper through the wear - corrosion mechanism of degradation, the contribution of the mechanical wear slightly greater than the contribution of corrosion.Under the condition of the wall wear, copper chloride medium corrosion degradation is the main mechanism of the wear -.Brooke's friction corrosion test system is to clarify the friction corrosion lead to material degradation mechanisms in the process of excellent tools.
Friction corrosion test system
Brooke's friction corrosion test system based onUMT TriboLabPlatform, it can precise control of load, speed and position.UMT modular design ensures that on a single hardware and software platform of flexibility and simplicity.By measuring the friction force and normal force, it obtained with time as the function of the coefficient of friction (COF package).Friction corrosion unit is equipped with three electrode electrochemical measurement system, can provide the material removal rate.This test system can test at high temperature.
