In sheet metal forming processes with complex strain paths, a part is subjected to large plastic deformation. This severe plastic deformation leads to high plastic strain localization zones and subsequent accumulation of those strains. Then internal and superficial micro-defects and in other words ductile damage is created. This damage causes quality problems such as fracture. Therefore, design...

this study was conducted in order to investigate the influence of plastic deformation on the transformation of retained austenite in a trip steel with a high content of al and a low content of si. to the aim, appropriate treatments were used to produce the starting material (trip steel). the microstructure of the obtained steel was composed of bainite and phases including ferrite and retained a...

Abstract. This research presents the microstructural evolution and mechanical properties of a hypoeutectic AlSi11Cu alloy obtained through laser powder bed fusion (L-PBF) subsequent severe plastic deformation. The as-built demonstrated structure formed by an Al matrix surrounded Si-enriched cellular network. Tensile tests indicated yield strength 350 MPa elongation to fracture lower than 5% for...

A review on the microstructural evolution in magnesium alloys during severe plastic deformation waspresented. The challenges deserved to achieve ultrafine/ nanostructured magnesium were discussed.The characteristics of the processed materials are influenced by three main factors, including i)difficult processing at low temperatures, ii) high temperature processing and the occurrence ofdynamic r...

Increasing material’s strength is of particular importance. Improving material’s mechanical properties such as strength could reduce the size and weight of the structure. The size and weight of the structure are among the effective parameters in design. Since the past a variety of methods have been developed to increase the strength of metals that are capable of increasing metals’ strength to a...

Products made of metals and alloys with a fine-grained structure, which have high physical, mechanical operational characteristics, are becoming increasingly in demand many technical technological fields. The most common efficient technologies for the production parts from this class materials various processes severe plastic deformation (SPD) (in general practice, at low homologous temperature...

This article studies the evolution of microstructure and wear resistance in tantalum processed by a newly developed Severe Plastic Deformation (SPD) technique called Indirect Extrusion Angular Pressing (IEAP). The tribological behavior nanostructured IEAP were analyzed this work. samples extruded for two, five, twelve passes then exposed to ball-on-disk testing dry sliding conditions. It was sh...

Increasing material’s strength is of particular importance. Improving material’s mechanical properties such as strength could reduce the size and weight of the structure. The size and weight of the structure are among the effective parameters in design. Since the past a variety of methods have been developed to increase the strength of metals that are capable of increasing metals’ strength to a...