Results 21 to 30 of about 5,568,093 (208)

Characterization of Hot Deformation Behavior and Dislocation Structure Evolution of an Advanced Nickel-Based Superalloy

open access: yesMetals, 2020
The hot deformation behavior of an advanced nickel-based Haynes282 superalloy was systematically investigated employing isothermal compression tests in the sub-solvus and super-solvus temperature with various strain rates.
Zhihao Yao   +5 more
doaj   +1 more source

Hot Deformation Behavior and Constitutive Analysis of As-Extruded Mg–6Zn–5Ca–3Ce Alloy Fabricated by Rapid Solidification

open access: yesMetals, 2021
The plasticity of Mg–6Zn–5Ca–3Ce alloy fabricated by rapid solidification (RS) at room temperature is poor due to its hexagonal-close-packed (HCP) structure.
Chengli Bao   +6 more
doaj   +1 more source

Deformation and Fracture Characterization of an Mg-Sn-Ca Alloy Using 3D Processing Maps

open access: yesMetals, 2023
The deformation and fracture characterization of an Mg−2Sn−1Ca alloy were studied through uniaxial isothermal compression tests. The flow stress curves, the efficiency of power dissipation, the instability parameter and the fracture behavior of an Mg−2Sn−
Chenchen Zhi   +8 more
doaj   +1 more source

Hot deformation behavior of micro-alloyed steel using processing maps developed with different constitutive equations [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
The hot workability of microalloyed steel was studied in the deformation temperature range of 850–1200ºC and strain rate of 0.001-100s-1. The constitutive relation of flow stress with temperature, strain rate and strain was established to construct ...
Thakur S.K., Das A.K., Jha B.K.
doaj   +1 more source

Microstructure, Hot Deformation Behavior, and Textural Evolution of Mg-3Sn-2Al-1Zn-0.6Nd Alloy

open access: yesMetals, 2022
To prepare wrought magnesium alloys with excellent plastic deformation properties, Mg-3Sn-2Al-1Zn-0.6Nd alloys were prepared. A hot compression test of Mg-3Sn-2Al-1Zn-0.6Nd alloy was carried out on a thermo-mechanical simulator.
Yuhang Guo   +4 more
doaj   +1 more source

Hot Deformation Behavior of SiCP/A1-Cu Composite

open access: yesCailiao gongcheng, 2017
Using the Gleeble-1500D simulator, the high temperature plastic deformation behavior of SiCp/Al-Cu composite were investigated at 350-500℃ with the strain rate of 0.01-10s-1. The true stress-strain curves were obtained in the tests. Constitutive equation
CHENG Ming-yang   +5 more
doaj   +1 more source

Hot Deformation Behavior of As-Cast 30Cr2Ni4MoV Steel Using Processing Maps

open access: yesMetals, 2017
The hot deformation behavior of as-cast 30Cr2Ni4MoV steel was characterized using processing maps in the temperature range 850 to 1200 °C and strain rate range 0.01 to 10 s−1.
Peng Zhou, Qingxian Ma, Jianbin Luo
doaj   +1 more source

Temperature and Strain Rate Controls of AISI 4340 based on a 3D Processing Map in a Hot Forging Process [PDF]

open access: yes한국정밀공학회지, 2022
This paper investigated the hot deformation behavior of an AISI 4340 material through high-temperature compression experiments. The compression tests were performed to obtain stress-strain curves at processing temperatures of 900, 1,000, 1,100, and 1 ...
Joon Hee Park   +3 more
doaj   +1 more source

A cutting process for random mappings [PDF]

open access: yesRandom Structures & Algorithms, 2006
AbstractIn this paper we consider a cutting process for random mappings. Specifically, for 0 <m<n, we consider the initial (uniform) random mapping digraphGnonnlabeled vertices, and we delete (if possible), uniformly and at random,mnoncyclic directed edges fromGn.
Jennie C. Hansen, Jerzy Jaworski
openaire   +3 more sources

Effect of Calcium on the Hot Working Behavior of AZ31-1.5 vol.% Nano-Alumina Composite Prepared by Disintegrated Melt Deposition (DMD) Processing

open access: yesMetals, 2018
AZ31-based nanocomposites are produced by disintegrated melt deposition (DMD) processing. In this investigation, the influence of the addition of Ca to AZ31-1.5 vol.% nano-alumina composite (base) on its hot working behavior is studied to develop a ...
Kamineni Pitcheswara Rao   +4 more
doaj   +1 more source

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