Results 71 to 80 of about 1,692 (216)

Characterization of Diffusion‐Creep Olivine Fabric and Its Identification in Natural Peridotite: Repeated Pure Shear and Equal‐Channeling Angular Pressing Tests

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract We performed repeated pure shear and equal‐channel angular pressing tests on Fe‐free olivine +10 or 20 vol% diopside aggregates to investigate the characteristics of crystallographic preferential orientation (CPO) development in olivine during diffusion creep.
N. Kim, S. Jiang, T. Hiraga
wiley   +1 more source

Modelling of the Superplastic Deformation of the Near-α Titanium Alloy (Ti-2.5Al-1.8Mn) Using Arrhenius-Type Constitutive Model and Artificial Neural Network

open access: yesMetals, 2017
The paper focuses on developing constitutive models for superplastic deformation behaviour of near-α titanium alloy (Ti-2.5Al-1.8Mn) at elevated temperatures in a range from 840 to 890 °C and in a strain rate range from 2 × 10−4 to 8 × 10−4 s−1.
Ahmed Mosleh   +6 more
doaj   +1 more source

Achieving Complex Nanostructures: The Role of Hydrogen in Controlling Mechanical Alloying and Microstructure Evolution in the TiVZrNbHf‐Cu System

open access: yesAdvanced Science, Volume 12, Issue 33, September 4, 2025.
This study highlights the drastic influence hydrogen has on the microstructure evolution during severe plastic deformation. High‐pressure torsion of a TiVZrNbHf‐Cu composite results in mechanical alloying and subsequent amorphization, whereas replacing the high entropy alloy with the corresponding hydride stabilizes a two‐phase microstructure.
Lukas Schweiger   +11 more
wiley   +1 more source

Effects of Process Parameters on Superplastic Forming of a License Plate Pocket Panel [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2014
Superplastic forming (SPF) is a manufacturing process utilized in the automotive industry to produce complex geometry aluminum or magnesium alloy components which cannot be fabricated at room temperature.
Mohammad Hasan Shojaeefard   +2 more
doaj  

Strain Localization Along Aphrodite Terra's Chasmata System, Venus: The Role of Frictional Melting and Fault‐Melt Interaction

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract We analyze large‐scale shear zones that are exposed along the equatorial chasmata of Eastern Aphrodite Terra to understand the role of strain localization in the deformation of the Venusian crust. These shear zones dip at low angles opposite to the slopes, forming terraces that expose portions of the shear planes.
Thomas Kenkmann   +2 more
wiley   +1 more source

Analysis of the failure mechanism of ZnO varistors influenced by high‐resistance media based on multi‐field coupling simulation

open access: yesHigh Voltage, Volume 10, Issue 3, Page 673-679, June 2025.
Abstract This study focuses on the distribution of high‐resistance media (pores and spinels) within ZnO $\text{ZnO}$ varistors and explores the mechanical and electrical failure mechanisms of varistors under different pulse actions. Micro‐CT technology revealed that the proportion of high‐resistance media in the edge area is much higher than in the ...
Pengfei Meng   +7 more
wiley   +1 more source

One‐Pot Synthesis and Characterization of Magnetic α‐Fe2O3/CuO/CuFe2O4 Nanocomposite for Multifunctional Therapeutic Applications

open access: yesChemistryOpen, Volume 14, Issue 2, February 2025.
This article presents the sol‐gel auto combustion synthesis of α‐Fe2O3/CuO/CuFe2O4 using Centella Asiatica plant extract as a green precursor. Significant antifungal and antioxidant properties were shown by this compound. This nanocomposite also investigated as a drug nanocarrier at different pH levels and compared by fitting the data to various drug ...
Fahmida Akter Sahara   +5 more
wiley   +1 more source

Friction stir welding of commercially available superplastic aluminium

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A series of Friction Stir Welds (FSW) has been produced in order to optimise tool designs and weld/process variables to minimise flaws in the weld and ...
Minton, Timothy J
core  

A Highly Ductile Composite of 3D‐Printed Poly(Lactic Acid) With InSe Particles and Flakes as a Filler

open access: yesSmartMat, Volume 6, Issue 1, February 2025.
The inherent brittleness of poly(lactic acid) (PLA) was addressed by incorporating indium selenide (InSe) particles and flakes as a reinforcing filler. The PLA/InSe composites are 1.5 times stronger and 5.5 times tougher than neat PLA materials. Compared with other fillers, InSe enables PLA to achieve better concurrent improvement in tension strength ...
Huihui Li   +7 more
wiley   +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

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