The role of cold work reduction and its effect on fatigue properties are examined by means of rotary beam fatigue testing. In this study, processing parameters from the initial ingot to the final size before finish drawing were held constant. Fatigue specimens were prepared with between 20 and 55% cold work in five percent increments. These samples were subsequently heat treated, cut into test ...

Article history: Received 2 January 2015 Received in revised form 22 October 2015 Accepted 23 October 2015 Available online 27 October 2015 The hot deformation behaviour of Inconel alloy IN718 was studied in the temperature range of 950–1100 °C and at strain rates of 0.01 and 1 s with a view to understand the microstructural evolution as a function of strain rate and temperature. For this purpo...

The thermomechanical behavior of High-Density Interconnect (HDI) vias has been numerically modeled taking into consideration the process-induced residual stresses. In this work, a two-step global-local scheme is implemented. The global model enables the computation of displacements, while the local model enables the computation of strains and stresses in the fine via structures. As the dimensio...

In the current study, Twin Parallel Channel Angular Extrusion (TPCAE) as a developed SPD processing technique is used to improve hydrogen storage properties of AZ91 cast alloy. The conducted at different temperatures, ranging from 340 °C down 200 °C. absorption and desorption tests are kinetically three using Sievert-type apparatus. Remarkable improvement in kinetic achieved result TPCAE proces...

This paper analyzes the changes in the five-parameter grain boundary character distribution in a-brass brought about by iterative thermomechanical processing (ITMP). In both reference and ITMP specimens, there was a tendency for boundaries to terminate on {111} planes. The high incidence of coherent twins and other boundaries terminated on {111} planes led to a high concentration of asymmetric ...

Abstract Advanced high-strength steels are key structural materials for the development of next-generation energy-efficient and environmentally friendly vehicles. Medium Mn steel, as one latest generation advanced steels, has attracted tremendous attentions over past decade due to its excellent mechanical properties. Here, state-of-the-art developments medium steel systematically reviewed with ...

Real-time evaluation of materials’ mechanical response is crucial to further improve the performance surfaces and coatings because widely used post-processing techniques (e.g., fractography analysis) cannot provide deep insight into deformation damage mechanisms that occur changes in coatings’ material corresponding dynamic thermomechanical loading conditions. The advanced situ examination meth...