Corrosion of steel is an electrochemical reaction that requires the presence of water (H2O), oxygen (O2) and ions such as chloride ions (Cl–), all of which exist in the atmosphere. Electrophoretic deposition is a process in which electrically charged particles are deposited out of a water suspension to coat a conductive part. The process is more commonly known as electrocoating or E-coating.
The selection of aluminum for a specific use is normally in reaction to an ever increasing demand for an improved strength to weight ratio along with a number of other key property advantages.
Rolled aluminum can be presented in several forms including sheets, plates and foils, and is used in many industries adding to the flexibility and its position as a critical material for modern applications.
The subject of high temperature materials is a very broad topic indeed. When a material is used at elevated temperatures, its strength, as reflected in tensile strength, stress rupture life, or fatigue life, is of prime importance.
Currently, there are three main categories of superalloys that include iron (iron nickel)-based, nickel-based, and cobalt-based alloys.
Vacuum melting, casting and re-melting equipment have been implemented in huge numbers over the recent years mainly with an intention to try and eradicate impurities from the process wherever possible.
Vacuum induction melting (VIM) has some specific advantages including, gas elimination, chemical composition control, process control and more.
Superplastically formed (SPF) aluminum alloys have the ability to be stretched to several times their original size without failure when heated to between 470-520°C.
These dilute alloys containing zirconium, later to be known by the trade name SUPRAL, were heavily cold worked to sheet and dynamically recrystallized to a fine stable grain size, typically 4-5μm, during the initial stages of hot deformation.