Results 21 to 30 of about 16,474,783 (283)

Microstructure and Hardness Evolution in Magnesium Processed by HPT [PDF]

open access: yesMaterials Research, 2017
High pressure torsion provides an opportunity to process materials with low formability such as magnesium at room temperature. The present work shows the microstructure evolution in commercially pure magnesium processed using a pressure of 6.0 GPa up to ...
Cláudio L. P. Silva   +5 more
doaj   +1 more source

A Comparison of Strengthening Mechanisms of Austenitic Fe-13Mn-1.3C Steel in Warm and Cold High-Pressure Torsion

open access: yesMetals, 2020
A study on the role of deformation temperature on a twin-assisted refinement of austenitic structure and phase transformations in high-pressure torsion of high-Mn Hadfield steel single crystals (Fe-13Mn-1.3C, in mass. %) has been carried out.
Galina G. Maier, Elena G. Astafurova
doaj   +1 more source

High-Pressure Torsion for Highly-Strained and High-Entropy Photocatalysts

open access: yesKONA Powder and Particle Journal, 2023
Nowadays, the environmental crisis caused by using fossil fuels and CO2 emissions has become a universal concern in people’s lives. Photocatalysis is a promising clean technology to produce hydrogen fuel, convert harmful components such as CO2, and ...
Saeid Akrami   +3 more
doaj   +1 more source

Amorphous-Nanocrystalline Composites Prepared by High-Pressure Torsion

open access: yesMetals, 2020
This article presents systematic studies of the preparation method and the specific features of the changes in the structure and properties of amorphous-nanocrystalline composites formed from melt-quenched ribbons of iron- and cobalt-based amorphous ...
Inga Permyakova, Alex Glezer
doaj   +1 more source

Sampling the Cu–Fe–Co phase diagram by severe plastic deformation for enhanced soft magnetic properties

open access: yesJournal of Materials Research and Technology, 2021
Initial powder mixtures of Cu, Fe and Co are exposed to severe plastic deformation by high-pressure torsion to prepare solid solutions. A broad range of compositions is investigated, whereas this study aims at the synthesis of soft magnetic materials and
Martin Stückler   +5 more
doaj   +1 more source

High pressure-induced structural effects in plastic packaging

open access: yes, 2022
S.555-566Today, flexible vacuum packages are predominantly used for products to be subjected to high pressure treatment. However, tray packages with a modified atmosphere are in demand, which provide a high failure rate with respect to gas and water ...
Richter, T.   +3 more
core   +1 more source

Structural properties of Fe49Ni49Ti2 alloy deformed by high pressure torsion

open access: yesAIP Advances, 2021
Tetrataenite (L10-FeNi) is a promising candidate for use as a permanent magnet free of rare-earth elements because of its favorable properties such as high magnetic anisotropy and coercivity.
Maxim Ulyanov   +4 more
doaj   +1 more source

Plastic yielding of glass in high‐pressure torsion apparatus [PDF]

open access: yesInternational Journal of Applied Glass Science, 2018
Abstract Hardness measurements performed at room temperature have demonstrated that glass can flow under elevated pressure, whereas the effect of high pressure on glass rheology remains poorly quantitated. Here, we applied a high‐pressure torsion apparatus to deform SCHOTT SF6 ®
Linfeng Ding   +3 more
openaire   +2 more sources

High Pressure Hugoniot Measurements in Solids Using Mach Reflections [PDF]

open access: yes, 2011
Shock compression experiments provide access to high pressures in a laboratory setting. Matter at extreme pressures is often studied by utilizing a well controlled planar impact between two flat plates to generate a one dimensional shock wave.
Brown, Justin Lee
core   +1 more source

Applications of High-Pressure Technology for High-Entropy Alloys: A Review

open access: yesMetals, 2019
High-entropy alloys are a new type of material developed in recent years. It breaks the traditional alloy-design conventions and has many excellent properties. High-pressure treatment is an effective means to change the structures and properties of metal
Wanqing Dong   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy