Journal ArticleDOI
Atom probe tomographic study of a friction-stir-processed Al–Mg–Sc alloy
TLDR
The microstructure of a twin-roll-cast Al-4.5Mg-0.28Sc at.% alloy after friction-stir processing, performed at two tool rotational rates, was investigated by atom probe tomography as discussed by the authors.About:
This article is published in Acta Materialia.The article was published on 2012-12-01. It has received 51 citations till now. The article focuses on the topics: Grain boundary.read more
Citations
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Precipitation in cold-rolled Al–Sc–Zr and Al–Mn–Sc–Zr alloys prepared by powder metallurgy
Martin Vlach,Ivana Stulíková,Bohumil Smola,Tomáš Kekule,Hana Kudrnová,Stanislav Daniš,Ryota Gemma,Vladivoj Očenášek,Jaroslav Málek,Dhritti Tanprayoon,Volkmar Neubert +10 more
TL;DR: In this paper, the effects of cold-rolling on thermal, mechanical and electrical properties, microstructure and recrystallization behavior of the AlScZr and AlMnScZR alloys prepared by powder metallurgy were studied.
Journal ArticleDOI
Experimental and modelling assessment of ductility in a precipitation hardening AlMgScZr alloy
Han Chen,Zhe Chen,Gang Ji,Shengyi Zhong,Haowei Wang,András Borbély,Yubin Ke,Yves Bréchet,Yves Bréchet +8 more
TL;DR: In this article, the effects of precipitation on ductility in precipitation hardening aluminium alloys are investigated based on a modified dislocation-based approach and experimental characterisation, which can provide a theoretical foundation for the design of high-performance structural materials.
Journal ArticleDOI
Superplasticity of friction-stir welded Al–Mg–Sc sheets with ultrafine-grained microstructure
TL;DR: In this paper, a commercial Al-5.4Mg-0.2Sc−0.1Zr alloy was subjected to equal-channel angular pressing at 300°C to a true strain of ∼12 followed by cold rolling to a total thickness reduction of 80%.
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On the role of Sc or Er micro-alloying in the microstructure evolution of Al-Mg alloy sheets during annealing
TL;DR: In this paper, the microstructure evolutions of a Sc-containing and an Er-containing Al-Mg alloy during annealing process were investigated comparatively, and it was shown that the recrystallization process of the Ercontaining alloy finishes rapidly between 350°C and 400°C, resulting in the formation of large recrstallized grains and the loss of sub-structure strengthening.
Journal ArticleDOI
Mechanisms of hydrogen embrittlement in high-strength aluminum alloys containing coherent or incoherent dispersoids
University of California Museum of Paleontology,Mahdieh Safyari,Masoud Moshtaghi,Tomohiko Hojo,Eiji Akiyama +4 more
TL;DR: In this article, the authors investigated the hydrogen embrittlement of a high strength Zr or Cr- added aluminum alloy specimens containing coherent Al3Zr or incoherent Al18Mg2Cr3 dispersoids, respectively.
References
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Book
Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Book
Deformation and Fracture Mechanics of Engineering Materials
TL;DR: In this article, the authors present an overview of fracture mechanics of engineering materials and examine the role of the transition temperature approach to fracture control in the engineering failure process, as well as various aspects of fracture toughness.
Book
The Hardness of Metals
TL;DR: Hardness measurements with conical and pyramidal indenters as mentioned in this paper have been used to measure the area of contact between solids and the hardness of ideal plastic metals. But they have not yet been applied to the case of spherical indenters.
Journal ArticleDOI
JCPDS-International Centre for Diffraction Data
Camden R. Hubbard,G.J. McCarthy +1 more