Differential Scanning Calorimetry (DSC) is a thermal analysis technique that measures the energy absorbed or released by a sample as a function of temperature or time. DSC has wide application for analysis of solid state reactions and solid-liquid reactions in many different materials. In recent years, DSC has been applied to analyze materials and alloys processed through Severe Plastic Deforma...

The paper report on the studies of effect severe plastic deformation structure and properties, including corrosion behavior, 110C-18Cr-Mo bearing steel. Various structural states were formed by methods (SPD) subsequent heat treatment. It is shown that SPD treatment lead to formation a homogeneous with uniform distribution carbides. In this case, leads reduction volume fraction carbides an incre...

Developing electrocatalysts for hydrogen evolution reaction (HER) and oxygen (OER) of water splitting is very important electrocatalytic production. Very recently, emerging study have demonstrated that materials show some superior HER OER performances after processed by severe plastic deformation (SPD). In this work, recent advances on electrochemical production SPD are summarized. Some basic p...

Deformation-induced grain-growth in nanocrystalline materials is a widely-reported phenomenon that has been attributed to grain boundary (GB) processes. In this paper, we report on the opposite phenomenon, wherein stable (NC) Cu-Ta alloy undergoes further refinement of nano-grains during severe plastic deformation (SPD). SPD up 250% results significant grain-size reduction despite 350°C increas...

One of the most common methods for production of ultra fine grained materials is severe plastic deformation (SPD). In this study, constrained groove pressing (CGP) and high pressure torsion (HPT) processes as effective methods of severe plastic deformation for the strain imposed on the pure copper were used. This paper presents the results of an experimental research, to review the influence of...

the term nanosteels is called to some special steels consisting of nanosize phases (i.e. ferrite, cementite, and austenite), grains, and carbides (e.g. vanadium and m2c) produced by nanotechnology. it is proof that exotic physical, mechanical, and magnetic properties can be obtained from nanostructured steels. fabrication methods of nanostructure steels can be divided into two main categories, ...

A finite element model of large strain deformation in machining is presented in the context of using machining as a controlled method for severe plastic deformation (SPD). Various characteristics of the large strain deformation field associated with chip formation, including strain, strain distribution, strain rate, and velocity field, are calculated using the model and compared with direct mea...

This paper presents an overview of fundamentals and potential applications ultrafine-grained Al-based conductors developed with the help severe plastic deformation (SPD) techniques. Based on deliberate formation nanoscale features (such as nanoprecipitates, segregation solutes along crystallographic defects so on) within ultrafine grains, it is possible to optimise their mechanical functional p...

It has been demonstrated for the first time that severe plastic deformation (SPD) permits to produce metallic alloys containing two coexisting amorphous phases from crystalline multiphase alloy. The as-cast Ni60Nb18Y22 alloy was coarse-grained and contained mainly NiY phase (grain size 25 µm) also NbNi3 ,N i2Y, Ni7Y2 Ni3Y 3–5 µm). High pressure torsion (4 GPa, 10 torsions) completely changed st...