FEA Analysis of coupled thermo-mechanical response of grey cast iron material used in brake discs

The Mechanism of Changes in the Surface Layer of Grey Cast Iron Automotive Brake Disc

The aim of the study was to create a model, describing the run of tribological processes in the surface layer of grey cast iron automotive brake discs. Grey cast iron discs mating with non-asbestos organic brake pads were chosen for the investigations, as the most widely used materials in car brakes. Samples for surface analysis were prepared from disc operating in stand and road conditions. St...

Analysis of microstructural strain-fields in grey cast iron

With increasing engine capacity the demand on the material increases. To meet the requirements new more advanced test methods are invented. One of these test methods is the digital image correlation technique (DIC). This method analyses deformations in materials by correlating the displacement in a set of sequentially acquired images. To be able to measure the deformations the material needs to...

investigation of process parameters on hot ring rolling by coupled thermo-mechanical 3d-fea

hot rolling of a large ring of titanium alloy (lrt) is a highly nonlinear incremental forming process with coupled mechanical and thermal behaviors (mtbs) which significantly affect microstructure and properties of the ring. the feed rate of idle roll and the rotational speed of driver roll have major effects on ovality of the ring. in this paper, the effects of these parameters on the ovality ...

Auto-analysis system for graphite morphology of grey cast iron

The current method to classify graphite morphology types of grey cast iron is based on traditional subjective observation, and it cannot be used for quantitative analysis. Since microstructures have a great effect on the mechanical properties of grey cast iron and different types have totally different characters, six types of grey cast iron are discussed and an image-processing software subsys...

Circumferential failures in grey cast iron pipes