In this study, continuous drive friction welding process is selected for joint dissimilar high chromium white cast iron and mild carbon steeel. The microstructure, presence diffusion of elements, deformation in interface weld metal were analyzed by scanning electron microscopy (SEM), optical (OM), energy dispersive spectroscopy (EDS), elemental mapping X-Ray diffraction (XRD). Elemental analysi...

Heat-resisting alloys are designed to survive high-temperature oxidation by forming a slow-growing scale, usually Cr 2 O 3 , which acts as barrier between the metal and its environment. However, that succeed in this way when exposed hot oxygen or air fail do so CO gas. Instead, they exhibit rapid “breakaway” corrosion, developing oxides of alloy base iron and/or nickel. The growth these non-pro...

Fine-grained tungsten carbide copper (WC-Cu) cemented carbide was sintered via spark plasma sintering at 1773K using a fine WC powder with a mean particle size of 0.11 mm. The mechanical properties were compared with tungsten carbide cobalt (WC-Co) cemented carbide and a binderless WC-sintered material. The Vickers hardness and fracture toughness obtained by the indentation fracture method for ...

Titanium carbide is used as an attractive reinforcement to produce particulate metal matrix composites. One of the problems to use this carbide as a reinforcement in copper-based composites is the lack of wetability in Cu-TiC system. This property improves as the C/Ti ratio in carbide decreases.&#10Problems to use this carbide as a reinforcement in copper-based composites is the lack of wetabii...

In this paper, we have successfully prepared porous chromium carbide ceramics by a facile one-step method. The synthesis reaction is carried out in an autoclave using waste polyethylene as carbon source. Generally, the as-obtained characterized X-ray diffraction, scanning electron microscope (SEM) and transmission microscope. diffraction pattern shows that sample cubic phase (Cr23C6). SEM resul...

The selective oxidation underneath the scale layer of an industrially hot rolled Fe-1.8Mn-0.8Cr steel at temperatures between 600 and 700 °C has been investigated. spatial distribution composition formed precipitates studied by high-resolution topochemical analysis via TEM-EELS NanoSIMS revealed heterogeneities in chemical composition, especially along grain boundaries. It could be shown that b...