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Article
Structure of mechanically alloyed Ti-Al-Nb powders
Ti-Al-Nb ternary powder mixtures containing 24Al-11Nb, 25Al-25Nb, 37.5Al-12.5Nb, and 28.5Al-23.9Nb (at. pct) were mechanically alloyed in a SPEX 8000 mixer mill using a ball-to-powder weight ratio of 10:1. The...
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Article
Structural evolution in mechanically alloyed Al-Fe powders
The structural evolution in mechanically alloyed binary aluminum-iron powder mixtures containing 1, 4, 7.3, 10.7, and 25 at. pct Fe was investigated using X-ray diffraction (XRD) and electron microscopic techn...
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Article
Mechanical alloying of nb-al powders
The effect of mechanical alloying (MA) on solid solubility extension, nanostructure formation, amorphization, intermetallic compound formation, and the occurrence of a face-centered cubic (fcc) phase in the Nb...
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Article
Titanium Golf Clubs
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Article
Materials for Sports
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Article
Microalloying of Sc, Ni, and Ce in an advanced Al-Zn-Mg-Cu alloy
Using transmission electron microscopy (TEM), scanning electron microscopy, X-ray diffraction (XRD), and optical microscopy, the effects of microalloying elements of Sc, Ni, and Ce on the microstructure of a n...
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Article
Grain-size control in Ti-48Al-2Cr-2Nb with yttrium additions
A gas-atomized (GA) prealloyed powder of the Ti-48Al-2Cr-2Nb intermetallic and 1.6 wt pct Y were mechanically alloyed (MA) and hot isostatically pressed (hipped) to produce a fully dense nanocrystalline materi...
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Article
Grain growth and recrystallization of nanocrystalline Al3Ti prepared by mechanical alloying
The grain sizes and lattice strains during mechanical alloying of Ti-75 at.% Al powder mixtures were studied using X-ray diffraction methods. Nanocrystalline L12-Al3Ti was obtained after a certain time period of ...
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Article
Mechanochemical processing of nanocrystalline Ti-6Al-4V alloy
Synthesis of nanocrystalline Ti-6Al-4V was explored using mechanochemical processing. The reaction mixture was comprised of CaH2, Mg powder, anhydrous AlCl3, anhydrous VCl3, and TiCl4. The milled powder (reaction...
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Article
The mechanochemical processing of aerospace metals
The status of mechanochemical processing of aerospace metals (aluminum and titanium) is reviewed. It is demonstrated that the activation of chemical reactions by mechanical energy can lead to many interesting ...
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Article
Transformation of mechanically alloyed Nb-Sn powder to Nb3Sn
Nb3Sn was processed via mechanical alloying (MA). The powder mixture comprised of stoichiometric proportions of elemental niobium and tin powder was mechanically alloyed for 3 hours and the mechanically alloyed p...
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Article
Advances in titanium metal injection molding
The approaches to production of titanium powder injection molded parts are reviewed. Historically, oxygen levels have been too high for structural use (particularly with the Ti-6Al-4V alloy). However, recent a...