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Investigation on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys with various Zn/Mg ratios
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In this paper, the effects of Zn/Mg ratios on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys aged at 150 °C have been investigated by using tensile tests, optical metallography, scanning electron microscopy, transmission electron microscope and atom probe tomography analyses.About:
This article is published in Journal of Materials Science & Technology.The article was published on 2021-09-20. It has received 92 citations till now. The article focuses on the topics: Microstructure & Phase (matter).read more
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On the potential of aluminum crossover alloys
TL;DR: In this paper, a review summarizes current knowledge about a new class of materials, crossover alloys, that combine advantageous properties normally limited to certain classes of commercial aluminum alloys and formalizes crossover alloy as a potential new aluminum alloy class which features an innovative alloy design methodology.
Journal ArticleDOI
On the potential of aluminum crossover alloys
TL;DR: In this paper , a review summarizes current knowledge about a new class of materials, crossover alloys, that combine advantageous properties normally limited to certain classes of commercial aluminum alloys and formalizes crossover alloy as a potential new aluminum alloy class which features an innovative alloy design methodology.
Journal ArticleDOI
Discovery of aluminum alloys with ultra-strength and high-toughness via a property-oriented design strategy
TL;DR: In this paper, a machine learning design system (MLDS) with a property-oriented design strategy was established to rapidly discover novel aluminum alloys with ductility and toughness indexes (with elongation δ=8%−10% and fracture toughness KIC=33-35-MPa·m1/2) comparable to those of current state-of-the-art AA7136 alloys when the ultimate tensile strength (UTS) exceeded approximately 100 MPa, with values reaching 700-750 MPa.
Journal ArticleDOI
Discovery of aluminum alloys with ultra-strength and high-toughness via a property-oriented design strategy
TL;DR: In this paper , a machine learning design system with a property-oriented design strategy was established to rapidly discover novel aluminum alloys with ductility and toughness indexes (with elongation δ=8%−10% and fracture toughness K IC =33-35 MPa·m 1/2 ).
Journal ArticleDOI
Unraveling precipitation evolution and strengthening function of the Al-Zn-Mg-Cu alloys with various Zn contents: multiple experiments and integrated internal-state-variable modeling
TL;DR: In this paper , the underlying functions of Zn content in precipitation evolution and strengthening function of Al-Zn-Mg-Cu alloys were systematically investigated by combining multiple experiments and an integrated internal-state-variable model.
References
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The Deformation and Ageing of Mild Steel: III Discussion of Results
TL;DR: In this paper, an attempt is made to explain the observed phenomena in the yielding and ageing of mild steel, described in two previous papers, in the general terms of a grain-boundary theory.
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Mechanical Behavior and Strengthening Mechanisms in Ultrafine Grain Precipitation-Strengthened Aluminum Alloy
Kaka Ma,Haiming Wen,Haiming Wen,Tao Hu,Troy D. Topping,Dieter Isheim,David N. Seidman,Enrique J. Lavernia,Julie M. Schoenung +8 more
TL;DR: In this article, the relationship between precipitation phenomena, grain size and mechanical behavior in a complex precipitation-strengthened alloy system, Al 7075 alloy, a commonly used aluminum alloy, was selected as a model system in the present study.
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Recent development in aluminium alloys for aerospace applications
TL;DR: In this article, the authors investigated new processing routes and new alloy chemistries for aircraft materials, which offer major improvements in ductility, toughness, fatigue performance and in reduction of residual stress in large dimension plate and sheet products.
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Substitutional solution hardening
TL;DR: In this paper, the authors used the result of Stehle and Seeger for the volume expansion around a dislocation, and calculated the interaction of a screw dislocation with a substitutional impurity atom of different size from the solvent atoms.
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Early-stage precipitation in Al-Zn-Mg-Cu alloy (7050)
Gang Sha,Alfred Cerezo +1 more
TL;DR: In this paper, the formation of metastable platelets in early-stage precipitation of a 7050 Al alloy aged at 121 °C was investigated using transmission electron microscopy, together with 3-dimensional atom probe analysis.