Results 1 to 10 of about 2,118 (163)

Effect of initial powder particle size on the hot workability of powder metallurgy Ni-based superalloys

open access: yesMaterials & Design, 2020
The effect of the initial powder particle size on the hot workability of Ni-based superalloys was investigated. Herein, four powders with different particle size ranges (106 μm) exhibited superior hot workability than that of the sample fabricated using ...
Masaya Higashi, Naoya Kanno
doaj   +3 more sources

Revealing the grain size dependent hot workability and deformation mechanisms in a Mg-Zn-Y alloy

open access: yesJournal of Magnesium and Alloys, 2023
Despite the industrial significance of grain size for enhancing mechanical properties and formability, the in-depth deformation mechanisms at elevated temperature are still unclear.
Ruiqing Lu   +6 more
doaj   +3 more sources

Experimental and numerical analyses of magnesium alloy hot workability

open access: yesJournal of Magnesium and Alloys, 2016
Due to their hexagonal crystal structure, magnesium alloys have relatively low workability at room temperature. In this study, the hot workability behavior of cast-extruded AZ31B magnesium alloy is studied through hot compression testing, numerical ...
F. Abbassi   +4 more
doaj   +3 more sources

The effects of η phases and Al3(Er, Zr) particles pre-precipitation on the hot workability and recrystallization of Al–Zn–Mg–Er–Zr alloy

open access: yesJournal of Materials Research and Technology
This paper investigates the impact of pre-precipitated η phases and Al3(Er, Zr) particles on the hot workability and recrystallization behavior of an Al–Zn–Mg–Er–Zr alloy. The optimal pre-precipitation heat treatment prior to hot deformation was obtained
Jiongshen Chen   +7 more
doaj   +3 more sources

Hot workability of nanocrystalline AZ91 magnesium alloy [PDF]

open access: yesJournal of Alloys and Compounds, 2014
This study examined the hot deformation behavior and workability characteristics of nanocrystalline AZ91 Mg alloy by performing hot compression tests with a Gleeble-3800 machine. To this end, a nanocrystalline alloy powder with a crystallite size of 25 nm was synthesized via mechanical milling of a pre-alloyed AZ91 Mg alloy powder for 14 h.
Jabbari Taleghani, Mohammad Ali   +1 more
exaly   +3 more sources

Hot Workability of 5052 Aluminum Alloy

open access: yesJournal of the Mechanical Behavior of Materials, 2001
Gavgali, M., Totik, Y.
doaj   +2 more sources

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

Quantifying complex influences of chemical composition and soaking conditions for increasing the hot workability of M2 high-speed steel by using the alternative approach

open access: yesJournal of Materials Research and Technology, 2020
The conditions for increasing the hot workability and extending the temperature range for the safe hot working of M2 high-speed steel (HSS) were studied and revealed. This was enabled by combination of two approaches, i.e. results obtained by an analysis
Iztok Peruš   +3 more
doaj   +1 more source

Hot Working of an Fe-25Al-1.5Ta Alloy Produced by Laser Powder Bed Fusion

open access: yesCrystals, 2023
In the present work, hot working was used as a post-processing method for Fe-25Al-1.5Ta (at.%) alloy built using laser powder bed fusion (LPBF) to refine the undesirable columnar microstructure with heterogeneous grain sizes and strong textures in the ...
Aliakbar Emdadi   +2 more
doaj   +1 more source

Hot Workability and Microstructural Evolution of Ti-5.5Al-5Mo-5V-2Nb-1Fe-1Zr Titanium Alloy Based on the Different Phase Zones during Plastic Deformation at High Temperatures

open access: yesMetals, 2023
Hot workability and microstructural evolution of Ti-5.5Al-5Mo-5V-2Nb-1Fe-1Zr titanium alloy, which is also called Ti555211 titanium alloy, are investigated during compressive deformation at different temperatures and strain rates.
Yushe Gao   +8 more
doaj   +1 more source

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