Cathodic Protection in Cavitation Erosion

The Volume Factor in Cavitation Erosion

Use of jet cavitation, however, occurs through an exit nozzle whose diameter can be changed, thereby changing volume with changing velocity. The results of such a change is shown to tie cavitation damage more powerfully to volume flow than to velocity. A specific example is in cavitation erosion of a high strength igneous rock which remained virtually undamaged at 70 MPa driving pressure but wa...

Comparison of cavitation erosion rate with liquid impingement erosion rate

Both cavitation erosion and liquid impingement erosion are phenomena that can cause pipe wall thinning in power plants. The Code for Power Generation Facilities, Rules on Pipe Wall Thinning Management, was published by the JSME (Japan Society of Mechanical Engineers) in 2005. The code says that cavitation erosion shall be prevented either in the design stage or by daily inspection. On the other...

Maintenance of Cathodic Protection Systems

Corrosion and Cathodic Protection Theory

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4.18 Principles of Cathodic Protection

4.18.1 Historical Background 2747 4.18.2 Electrochemical Principles 2748 4.18.2.1 Aqueous Corrosion 2748 4.18.2.2 Cathodic Protection 2748 4.18.2.3 Oxygen Reduction 2749 4.18.2.4 Hydrogen Evolution 2750 4.18.3 Methods of Applying Cathodic Protection 2751 4.18.3.1 Impressed Current Method 2751 4.18.3.2 Sacrificial Anodes 2752 4.18.4 Proof of Protection 2753 4.18.4.1 Steel 2753 4.18.4.2 Other Met...