Hot torsion testing is specifically useful to assist in designing the all-important hot rolling schedules for steel.
The key areas of focus in this schedule are understanding the critical temperature phases at which recrystallization can be prevented and then the start and finish of the austenite transformation.
Grain refinement is a critical process in improving key properties such as mechanical properties, formability and machinability through methodical adjustment of the microstructure.
Inoculation is an example of a common chemical method which is commonly used with aluminum alloys to achieve a fine equiaxed grain structure.
ARB is a cutting edge technique which is not yet widely commercially employed with can be applied to gain significant improvements in properties through a refined grain structure.
The rolling procedure itself applies severe plastic deformation to a material and then through a layered approach and repeated rolling creates a finished product with highly advantageous property profiles.
HPDC is an efficient componentry manufacturing method for the production of various product forms with extremely quick casting possibilities coupled with a high pressure injection process.
The four main metal groups used with this technology are aluminum, zinc, magnesium and copper-base alloys.
Hot torsion testing is key in find the interdependence between hot plastic deformation process parameters, and the material structure and properties.
This method has been useful to provide the existence of hot ductility as being dependent on both temperatures and strain rates.