23 Result(s)

Article

Editorial

F. H. (Sam) Froes in Advanced Performance Materials (1994)

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...

Guo-Hao Chen, C. Suryanarayana… in Metallurgical and Materials Transactions A (1995)

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...

D. K. Mukhopadhyay, C. Suryanarayana… in Metallurgical and Materials Transactions A (1995)

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...

Zhixue Peng, C. Suryanarayana… in Metallurgical and Materials Transactions A (1996)

Article

Editorial

F.H. (Sam) Froes in Advanced Performance Materials (1996)

Article

Editorial

F.H. (Sam) Froes in Advanced Performance Materials (1997)

Article

Titanium Golf Clubs

Chet Shira, F. H. Sam Froes in MRS Bulletin (1998)

Article

Materials for Sports

F. H. Sam Froes, Steve Haake, Simon Fagg, Kamran Tabeshfar, Xavier Velay in MRS Bulletin (1998)

Article

Magnesium Science, Technology and Applications

The science, technology and applications of magnesium alloys are reviewed. The very low density of magnesium in combination with excellent castability is leading to increased use, despite poor galvanic corrosi...

D. Eliezer, E. Aghion, F.H. (Sam) Froes in Advanced Performance Materials (1998)

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...

Yi-Lei Wu, Chenggong Li, F. H. (Sam) Froes… in Metallurgical and Materials Transactions A (1999)

Article

Processing and Deformation Behavior of Gamma TiAl Alloys with Fine-Grained Equiaxed Microstructures

This paper describes how a submicrocrystalline structure can be produced by isothermal deformation of cast and powder metallurgy γ-TiAl-based alloys at temperatures 1000°C and below using relatively inexpensiv...

G.A. Salishchev, O.N. Senkov, R.M. Imayev, V.M. Imayev… in Advanced Performance Materials (1999)

Article

The use of titanium in family automobiles: Current trends

Titanium offers a number of attractive features for use in high-production-volume automobiles; however, to date, high cost has been a barrier to application. This article discusses the current trends for the u...

K. Faller, F. H. (Sam) Froes in JOM (2001)

Article

Fabricating sports equipment components via powder metallurgy

Powder metallurgy (P/M) offers a viable, cost-effective approach to fabricating sports and leisure equipment components. Both complex, monolithic parts and parts produced from materials of quite different dens...

V. S. Moxson, F. H. (Sam) Froes in JOM (2001)

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...

P. B. Trivedi, S. N. Patankar… in Metallurgical and Materials Transactions A (2002)

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 ...

F. Zhang, L. Lu, M. O. Lai, F. H. (Sam) Froes in Journal of Materials Science (2003)

Article

How to market titanium: Lower the cost

F. H. (Sam) Froes in JOM (2004)

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...

M. D. S. Pirzada, F. H. (Sam) Froes… in Metallurgical and Materials Transactions A (2004)

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 ...

F. H. (Sam) Froes, B. Trindade in Journal of Materials Science (2004)

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...

S. N. Patankar, F. H. (Sam) Froes in Metallurgical and Materials Transactions A (2004)

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...

F. H. Sam Froes in Powder Metallurgy and Metal Ceramics (2007)