Results 21 to 30 of about 251,961 (304)

Modeling of Dynamic Recrystallization Behavior of As-Extruded AM50 Magnesium Alloy during Hot Compression by a Cellular Automaton Method

open access: yesMetals, 2021
The dynamic recrystallization (DRX) behavior of as-extruded AM50 magnesium alloy was modelled and simulated by a cellular automaton (CA) method. Isothermal compression experiments were conducted, and the characteristic parameters in the CA model were ...
Dayu Shu   +5 more
doaj   +1 more source

Microstructure and Properties Evaluation of Ductile Cast Iron Subjected to Hot Plastic Deformation and Ambient Temperature Compression [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The as-cast microstructure of ductile cast iron (DI) was investigated using light microscopy (LM) and SEM techniques. Further the influence of hot plastic extrusion at 1000°C with plastic strain in the range of 20-60-80% on the transformation of the as ...
A.S. Chaus   +3 more
doaj   +1 more source

HOT-DEFORMATION BEHAVIOR OF HOT ISOSTATIC PRESSED Ti-6Al-4V ALLOY DURING HOT COMPRESSION

open access: yesMateriali in tehnologije, 2021
A single-pass and multi-pass compression experiments with a Ti-6Al-4V alloy fabricated with hot isostatic pressing (HIP) were carried out on a Gleeble-1500D simulator. The true stress-strain curve, microstructure and microhardness of the alloy deformed at a total strain of about 70 % were studied. The results show that the stress value increased as the
Haijun Liu   +5 more
openaire   +2 more sources

Atomic structure of hot compressed borosilicate glasses [PDF]

open access: yesJournal of the American Ceramic Society, 2020
Abstract Borosilicate glasses have been in widespread use for over a century; however, a detailed understanding of the structural response to densification is still lacking. In this work, two commercial borosilicate glasses, viz., SCHOTT N‐BK7 ® (N‐BK7) and Borofloat33
Linfeng Ding   +9 more
openaire   +1 more source

Integration of Low-grade Waste Heat System Based on Lithium Bromide Refrigeration in a Polysilicon Industry

open access: yesChemical Engineering Transactions, 2019
Heat Integration is a crucial method for making reasonable and effective utilization of waste heat in industrial enterprises. In a polysilicon production enterprise, some hot streams are cooled to a specified temperature by circulating cooling water ...
Youlei Wang, Yufei Wang, Xiao Feng
doaj   +1 more source

In-Depth Comparison of an Industrially Extruded Powder and Ingot Al Alloys

open access: yesMetals, 2020
An industrial press was used to consolidate compacted aluminum powder with a nominal diameter in the range of 1 µm. Direct and indirect hot-extrusion processes were used, and suitable process parameters were determined from heating conditions, ram speeds
David Bombač   +4 more
doaj   +1 more source

Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material [PDF]

open access: yesMaterials Research, 2019
The Norton-Bailey equation was used to simulate by finite elements the hardening and dynamic recovery of copper during the hot compression tests. The constants of Norton-Bailey equation were determined from the Voce-Kocks model.
Gabriel Torrente Prato
doaj   +1 more source

Study of Thermal Compression Constitutive Relation for 5182-Sc-Zr Alloy Based on Arrhenius-Type and ANN Model

open access: yesCrystals, 2022
Hot compression experiments were performed on alloy 5182 with small additions of Sc and Zr. The 5182 alloy containing Sc and Zr is critical for expanding the 5182 alloy’s range of applications, and a thorough understanding of its thermal processing ...
Jingxiao Li   +5 more
doaj   +1 more source

Shock temperatures of preheated MgO [PDF]

open access: yes, 2009
Shock temperature measurements via optical pyrometry are being conducted on single-crystal MgO preheated before compression to 1905–1924 K. Planar shocks were generated by impacting hot Mo(driver plate)-MgO targets with Mo or Ta flyers launched by the ...
Mark Elert   +7 more
core   +1 more source

The Hot Deformation Activation Energy of 7050 Aluminum Alloy under Three Different Deformation Modes

open access: yesMetals, 2016
In this study, the hot deformation activation energy values of 7050-T7451 aluminum alloy, calculated with two different methods under three deformation modes, were compared.
Deli Sang, Ruidong Fu, Yijun Li
doaj   +1 more source

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