Results 1 to 10 of about 20,005 (243)

Influence of Martensite Deformation on Cu Precipitation Strengthening [PDF]

open access: goldMetals, 2020
Cu precipitation strengthening was compared in steels after treatments with and without cold rolling. A 0.2% C steel containing up to 1.5% Cu was quenched and tempered.
Jaromir Dlouhy   +2 more
doaj   +2 more sources

Precipitation strengthening in an ultralight magnesium alloy [PDF]

open access: yesNature Communications, 2019
Solution treatment and quenching can strengthen magnesium-lithium-aluminium alloys, but this strength decreases with ageing. Here, the authors show this is due to semi-coherent nanoparticle precipitation followed by coarsening, and control the lattice ...
Song Tang   +9 more
doaj   +2 more sources

Effects of NiAl on precipitation behavior and mechanical properties of M2C strengthened secondary hardening steel

open access: goldJournal of Materials Research and Technology
A novel dual-precipitation steel was developed by introducing NiAl into secondary hardening ultrahigh strength steel. This steel exhibited a yield strength of 1.9 GPa, an ultimate tensile strength of 2.3 GPa, and an elongation of 9%.
Yangxin Wang   +6 more
doaj   +2 more sources

Al-5Cu-0.3Sc-B4C Nanocomposites: Microstructural Refinement, Strengthening Mechanisms, and Corrosion Behavior [PDF]

open access: yesNanomaterials
In this study, Al-5Cu-0.3Sc nanocomposites reinforced with 0–20 wt.% B4C were successfully fabricated using a combined melt-spinning, mechanical alloying, and sintering route.
Seyit Çağlar, Cengiz Temiz
doaj   +2 more sources

Achieving High Strength and Low Yield Ratio via Direct Quenching and Aging in Cu-Precipitation-Strengthened Steel [PDF]

open access: yesNanomaterials
The high yield ratio remains a critical challenge restricting the widespread application of ultra-high-strength steels. This study investigates a direct quenching and aging (DQA) route without solution treatment in a Cu-precipitation-strengthened steel ...
Xinghao Wei   +6 more
doaj   +2 more sources

Effects of titanium concentration on microstructure and mechanical properties of high-purity vanadium alloys

open access: yesMaterials & Design, 2022
Effects of Ti concentration on microstructure and mechanical properties of high-purity V-4Cr-xTi alloys have been studied by means of scanning electron microscopy, transmission electron microscopy, Vickers hardness and tensile tests.
Jingjie Shen   +5 more
doaj   +1 more source

Mechanism for enhanced precipitation strengthening due to the addition of copper to Al-Zn-Mg alloys with high Zn/Mg ratio

open access: yesMaterials & Design, 2023
The mechanism for enhanced precipitation strengthening due to the addition of copper to Al-9.0Zn-1.5Mg (wt.%) alloys has been investigated by means of tensile test, transmission electron microscopy, anomalous small-angle X-ray scattering and three ...
Mengchu Yang   +4 more
doaj   +1 more source

On the correlation among continuous cooling transformations, interphase precipitation and strengthening mechanism in Ti-microalloyed steel

open access: yesJournal of Materials Research and Technology, 2021
The correlation among continuous cooling transformations, interphase precipitation and their strengthening effect was investigated quantitatively in a Ti- microalloyed steel subjected to a two-stage controlled rolling and cooling process.
Songjun Chen   +4 more
doaj   +1 more source

Mechanism of high-strength and ductility of Mg-RE alloy fabricated by low-temperature extrusion and aging treatment

open access: yesMaterials & Design, 2021
Through studying the effect of initial microstructure on the precipitation behavior, microstructure evolution and mechanical properties of Mg-6Gd-4Y-0.5Zn-0.5Zr alloy, an effective way to fabricate high-strength and ductile Mg-RE alloy was proposed by ...
Xueze Jin   +4 more
doaj   +1 more source

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