Results 21 to 30 of about 702,042 (308)

Effect of homogenization heat treatment on refractory phase and grain size of 5083 aluminum alloy

open access: yesCailiao gongcheng, 2023
In order to study the changes in the content, type of the refractory phases and grain size during homogenization of the 5083 aluminum alloy, material microstructure was characterized by metallographic microscope (OM), scanning electron microscope(SEM ...
HUANG Yuanchun   +5 more
doaj   +1 more source

Refining melts of heat-resistant alloys during casting of GTE details in shell forms obtained by foamed polystyrene models [PDF]

open access: yesМеталознавство та обробка металів, 2020
Minimization of the melt contamination of heat-resistant alloys from excess gas content, non-metallic inclusions during crystallization upon receipt of the GTE details conducted by the authors empirical choice an of thermal conditions and technical ...
Shynskyi O.I.   +4 more
doaj   +1 more source

Overheating threshold and its effect on time–temperature-transformation diagrams of zirconium based bulk metallic glasses [PDF]

open access: yes, 2004
A pronounced effect of overheating is observed on the crystallization behavior for the three zirconium-based bulk metallic glasses: Zr41.2Ti13.8Cu12.5Ni10Be22.5, Zr57Cu15.4Ni12.6Al10Nb5, and Zr52.5Cu17.9Ni14.6Al10Ti5.
Johnson, W. L.   +4 more
core   +1 more source

Effect of different casting techniques on the microstructure and mechanical properties of AE44-2 magnesium alloy

open access: yesMaterials Research Express, 2020
AE44-2 magnesium (Mg) alloys were fabricated by gravity casting (GC), high pressure die casting (HPDC), and high vacuum assisted high pressure die casting (HVHPDC).
Taihe Le   +5 more
doaj   +1 more source

Microstructure and plastic properties of mg-Li alloys smelted in vacuum induction furnaces after hot working [PDF]

open access: yes, 2017
The paper analyses the characteristics of plasticity and microstructure of magnesium alloys with lithium meant for hot plastic working with different lithium content. The alloys were prepared in conditions of vacuum smelting. Achieved ingots were subject
Hadasik, Eugeniusz   +3 more
core   +1 more source

Two-phase coexistence in Fe–Ni alloys synthesized by ball milling [PDF]

open access: yes, 1996
We used mechanical alloying with a Spex 8000 mixer/mill to synthesize a series of Fe100–xNix alloys from x=0 to x=49. The Spex mill was modified so that it could also operate at a reduced milling intensity, and we compared the alloys synthesized after ...
Fultz, B., Hong, L. B.
core   +1 more source

Improvement and evaluation of polymer-matrix composite panels with hat stiffeners

open access: yesMATEC Web of Conferences, 2016
Hat-stiffened composite panels fabricated by co-curing technologies are widely used in the fuselage panel due to the good structural stability and high efficiency of axial load transferring.
Li S. J.   +7 more
doaj   +1 more source

Dynamic recrystallization mechanism of high-strength Mg-Gd-Y-Zn-Mn alloy by hot compression deformation

open access: yesJournal of Materials Research and Technology
The Mg-8Gd-3.5Y-1.5Zn-0.8Mn (wt%) alloy was designed and prepared to investigate the synergistic dynamic recrystallization (DRX) mechanism at high temperature and low strain rate.
Yini Lin   +8 more
doaj   +1 more source

Strain-rate sensitivity of high-entropy alloys and its significance in deformation

open access: yesMaterials Research Letters, 2019
Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon   +5 more
doaj   +1 more source

Structure of Sn1-xGex random alloys as obtained from the coherent potential approximation [PDF]

open access: yes, 2011
The structure of the Sn1-xGex random alloys is studied using density functional theory and the coherent potential approximation. We report on the deviation of the Sn1-xGex alloys from Vegard's law, addressing their full compositional range.
A. Chroneos   +4 more
core   +1 more source

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