Results 51 to 60 of about 1,554 (222)

Microstructure and Properties of Magnesium Alloy AZ61 After Extrusion with KoBo Method [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The article presents tests results of metalforming of magnesium alloy AZ61. Materials for tests were ingots sized  40×90 mm from magnesium alloy marked with symbol AZ61. Before the shaping process the ingots underwent heat treatment.
I. Bednarczyk
doaj   +1 more source

Advancing Severe Plastic Deformation for Tubular Samples: Systematic Review and Machine Learning Optimization

open access: yesMetalMat, Volume 3, Issue 1, March 2026.
This review highlights recent advancements in Severe Plastic Deformation (SPD) techniques tailored for tubular samples. The mechanisms of processing are critically discussed with emphasis on microstructural control and the governing process parameters that enable refinement to ultrafine‐ and nano‐grained structures. Comparative insights into equivalent
Eman M. Zayed   +5 more
wiley   +1 more source

Superplastic flow and micro-mechanical response of ultrafine-grained materials

open access: yes, 2018
The bulk ultrafine-grained (UFG) materials usually show superior mechanical properties. Since the occurrence of superplastic flow generally requires a grain size smaller than ~10 µm, it is anticipated that materials processed by severe plastic ...
Kawasaki, Megumi   +2 more
core   +1 more source

FEM Analysis of Superplastic-Forming Process to Manufacture a Hemispherical Shell

open access: yesApplied Sciences
Superplastic materials are characterised by extreme lightness and remarkable ductility. Instead of a punch, a gas is used to push the sheet into the die cavity, and it is precisely regulated to control the material’s strain rate.
Gillo Giuliano, Wilma Polini
doaj   +1 more source

Orientation‐Dependent Phase Transformation Pathways Enabling Superior Superelastic and Elastocaloric Performance of NiTi Alloys

open access: yesAdvanced Science, Volume 13, Issue 12, 27 February 2026.
By integrating simulations and experiments, the preferred (001) crystallographic texture promotes reversible martensite formation through variant selection, enhancing both superelastic and elastocaloric performance. This work provides fundamental guidelines for designing high‐efficiency NiTi‐based functional materials. Abstract Developing elastocaloric
Jiaqi Lu   +5 more
wiley   +1 more source

Overview: Using Severe Plastic Deformation in the Processing of Superplastic Materials

open access: yes, 2023
In tensile testing, polycrystalline materials generally fail at relatively low total elongations but under some limited conditions it is possible to achieve exceptionally high elongations of up to and exceeding 400%.
Terence G. Langdon, Langdon, Terence G.
core   +1 more source

The study of the formation of a hollow cellular structure with a given geometry [PDF]

open access: yesНанотехнологии в строительстве
Introduction. The use of superplastic forming technology presents a number of challenges, including the lack of experimental and analytical data and the absence of specialized processing facilities.
Nikolay Y. Stepanenko   +2 more
doaj   +1 more source

Fracture‐Assisted Pressure Solution Creep of Granite: An Example From the Mont Blanc Massif, Western Alps

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract The Mont Blanc granite, as other deformed granites, has splitting properties attributed to two perpendicular planes: one formed by aligned fractures and the other by aligned micas in foliation planes. It is shown that this microstructure results from ductile deformation with stress‐driven dissolution of quartz and feldspar that passively ...
Jean‐Pierre Gratier   +2 more
wiley   +1 more source

Materials Design and Processings for Industrial High-Strain Rate Superplastic Forming

open access: yes, 1999
The optimum materials design in microstructural control could be developed for the highstrain-rate superplastic materials in the industrial scale. In the present work, it is reported that the high-performance-engine pistons with near-net-shape can be ...
K. Higashi, H. Hosokawa
core   +1 more source

Superplastic Deformation Mechanisms in Fine-Grained 2050 Al-Cu-Li Alloys

open access: yes, 2020
The deformation behavior and microstructural evolution of fine-grained 2050 alloys at elevated temperatures and slow strain rates were investigated. The results showed that significant dynamic anisotropic grain growth occurred at the primary stage of ...
Quan Sun   +4 more
core   +1 more source

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