Results 1 to 10 of about 6,571,449 (244)

Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents

open access: yesApplied Sciences, 2021
The hot deformation behaviour of an Al4.5Zn4.5Mg1Cu0.12Zr based alloy with 0.05, 0.1 and 0.15% Sc was investigated at temperatures between 300–450 °C and a strain rate of 0.1–15 s−1.
Maxim G. Khomutov   +5 more
doaj   +1 more source

Deformation Behavior and Constitutive Equation of 42CrMo Steel at High Temperature

open access: yesMetals, 2021
High-temperature reduction pretreatment (HTRP) is a process that can significantly improve the core quality of a billet. The existing flow stress data cannot meet the needs of simulation due to lack of high temperature data.
Hongqiang Liu   +5 more
doaj   +1 more source

A Methodology for Tribo-Mechanical Characterization of Metallic Alloys under Extreme Loading and Temperature Conditions Typical of Metal Cutting Processes

open access: yesJournal of Manufacturing and Materials Processing, 2022
The present paper proposes a combined tribo-mechanical methodology for assessing friction under conditions representative of metal cutting, without resorting to machining process monitoring.
Afonso V. L. Gregório   +4 more
doaj   +1 more source

Critical Conditions for Dynamic Recrystallization of S280 Ultra-High-Strength Stainless Steel Based on Work Hardening Rate

open access: yesMetals, 2022
Isothermal and constant-strain-rate compression experiments for S280 ultra-high-strength stainless steel were carried out under deformation temperatures of 1000–1150 °C and strain rates of 0.001–10 s−1 with a Thermecmaster-Z thermal simulator.
Mutong Liu   +5 more
doaj   +1 more source

Flow Stress of bcc Metals over a Wide Range of Temperature and Strain Rates

open access: yesMetals, 2020
A physical-based model for the flow stress of bcc metals is presented. Here, thermally activated and viscous drag regimes are considered. For the thermally activated component of the flow stress, the diffusion-controlled regime at elevated temperature is
Gabriel Testa   +3 more
doaj   +1 more source

Predicting High Temperature Flow Stress of Nickel Alloy A230 Based on an Artificial Neural Network

open access: yesMetals, 2022
The high-temperature deformation behavior of metals and alloys undergoes complex mechanisms depending on the deformation conditions. The microstructure and mechanical properties after deformation are important factors that determine the strength and ...
In Yong Moon   +7 more
doaj   +1 more source

Modelling Dynamic Recrystallization of A356 Aluminum Alloy during Hot Deformation

open access: yesMetals, 2022
The flow stress and dynamic recrystallization behavior of A356 aluminum alloy was studied, with a strain rate ranging from 0.001 s−1 to 1 s−1 and temperature ranging from 300 to 500 °C. Both the true stress–strain curves and microstructure examination of
Zhenglong Liang   +3 more
doaj   +1 more source

Micro-grinding temperature prediction considering the effects of crystallographic orientation

open access: yesManufacturing Review, 2019
Tensile stress and thermal damage resulting from thermal loading will reduce the anti-fraying and anti-fatigue of workpieces, which is undesirable for micro-grinding, so it is imperative to control the rise of temperature.
Zhao Man, Ji Xia, Liang Steven Y.
doaj   +1 more source

The Study of the Effect of Alternate Intermittent Deformation on the Bauschinger Effect in a Zirconium-Based Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The article reports the results of research on the influence of the alternate intermittent deformation of specimens by a torsion method on the Bauschinger effect in the Zr-1%Nb zirconium-based alloy.
H. Dyja   +3 more
doaj   +1 more source

Hot compressive deformation behavior and microstructure characteristics of new ultra strength Al-Zn-Mg-Cu alloy

open access: yesCailiao gongcheng, 2019
The hot compression test of the new ultra strength Al-Zn-Mg-Cu-Zr-Sc alloy at high temperature was carried out by using the Gleeble-1500 thermal simulator.
WANG Yu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy