Press hardening steel answers several challenges within the automotive industry by successfully meeting the requirements of increased safety whilst at the same time contributing to lighter, more eco-friendly materials.
Strength levels can be up as high as 1500MPa meaning application in passive safety systems such as side impact beams works very effectively.
A steadily increasing demand for nickel has without doubt raised the importance of the worlds nickel reserves and applied more focus on the techniques used for extraction of nickel from its ores.
The Caron Process is one such technique which is effective by reduction of the ore by roasting followed by ammonia leaching of the reduced ores.
By definitions composite materials consist of two or more materials which have clear distinction and different chemical composition.
Tungsten composite powders can be made by a number of technological techniques ranging from reduction of cobalt oxide mixtures to the precipitation of colbalts onto the tungsten carbide surface.
Although relatively complex and involving a series of processes, induction hardening offers an extremely energy efficient (up to 95% savings) heat treating operation.
The three most common forms of induction hardening are surface hardening, through hardening, and selective hardening. Surface hardening for example is a key hardening process in automotive components.
ECAP is one of the most commonly employed severe plastic deformation process to drive nano or ultrafine grained microstructure at low homologous temperatures.
One critical conclusion of various studies is that microstructure is highly dependent on the experimental conditions, and in particular the number of passes and on the rotation of the sample between individual passes.
Specific to surgical implants, metallic materials have a range of uses however some serious challenges still exist such as the release of toxic metallic ions into bone or tissue through corrosion or wear processes.
Biodegradable materials offer a very real alternative as it means less harmful effect on the patient and potentially avoids repeated surgical procedures to remove the parts once healing is complete.