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Intrinsic attraction driving the high temperature performance of additively manufactured aluminum alloys. [PDF]
Nat CommunWang Y, Yu C, Gan K, Yuan T, Li R.
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Alloying-assisted precipitation strengthening of Ti50Ni15Pd25Cu10 shape memory alloy
Materials Science and Engineering: A, 2021Abstract The precipitation strengthening effect of Ti50Ni15Pd25Cu10 shape memory alloy is effectively promoted by adding a small amount of vanadium. Cu-rich TiPdCu precipitates formed when Ti50-xNi15Pd25Cu10Vx alloys were aged at 573 K for 1 h. The shape memory effect, the pseudoelasticity, and the elastocaloric effect were effectively improved after
Yu-Nien Shen +2 more
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Precipitate Strengthening of Nanostructured Aluminium Alloy
Journal of Nanoscience and Nanotechnology, 2012Grain boundaries and precipitates are the major microstructural features influencing the mechanical properties of metals and alloys. Refinement of the grain size to the nanometre scale brings about a significant increase in the mechanical strength of the materials because of the increased number of grain boundaries which act as obstacles to sliding ...
Kinga, Wawer +2 more
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Synergistic precipitation strengthening in TiAl alloys
Applied Physics Letters, 2006Precipitation of creep-life enhancing H carbides and ζ silicides occurring during α2 dissolution in fully lamellar (α2+γ)-TiAl (alloyed with carbon and silicon) were studied by transmission electron microscopy. The α2→(γ+precipitate) transformation reaction consisted of the following sequence: α2 dissolution by ledge mechanism, silicide precipitation ...
M. Karadge, Y.-W. Kim, P. I. Gouma
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Precipitation strengthening of the aluminum alloy AA6111
Metallurgical and Materials Transactions A, 2003There is an increasing use of aluminum alloy sheet in automotive applications due to the desire to decrease vehicle weight. The current study provides a detailed quantitative study on precipitation strengthening in AA6111, which is the alloy of choice in North America for exposed body panels.
X. Wang +4 more
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The Bauschinger effect in precipitation strengthened aluminum alloys
Metallurgical Transactions A, 1976The Bauschinger effect in precipitation strengthened Al-Cu-Mg, Al-Zn-Mg and Al-Cu polycrystals was measured as a function of applied strain. Alloys heat treated to contain easily shearable precipitates,i.e., GPB, GP and θ″ exhibited a small Bauschinger effect, on the order of that in pure aluminum. In contrast, alloys with nonshearable precipitates, S′,
R. E. Stoltz, R. M. Pelloux
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Precipitation strengthening in aluminum-zirconium-vanadium alloys
Journal of Alloys and Compounds, 2017Abstract Atom probe tomography (APT) and high resolution transmission electron microscopy (HRTEM) were used to study the co-precipitation and coarsening mechanisms of Al 3 (Zr 1 -x ,V x ) precipitates formed in Al-Zr-V alloys. The strengthening mechanism that is operative in properly aged Al-Zr-V alloys are determined, and the antiphase boundary ...
Yangyang Fan, Makhlouf M. Makhlouf
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A precipitation-strengthened high-entropy alloy for additive manufacturing
Additive Manufacturing, 2020Abstract As newly developed metallic materials, several high-entropy alloys (HEAs) have been fabricated via additive manufacturing (AM) and have been found to exhibit more uniform microstructures and better mechanical properties than their as-cast counterparts.
Kexuan Zhou +6 more
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