Details

Autor(en) / Beteiligte

• Gu, X. J.
• Poon, S. Joseph
• Shiflet, Gary J.
• Widom, Michael

Titel

Mechanical properties, glass transition temperature, and bond enthalpy trends of high metalloid Fe-based bulk metallic glasses

Ist Teil von

• Applied physics letters, 2008-04, Vol.92 (16), p.161910-161910-3

Ort / Verlag

United States: American Institute of Physics

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Mechanical properties and glass transition temperatures ( T g ) of Fe-Cr-Mo-P-C-B bulk metallic glasses containing up to 27 at. % metalloids have been studied. The shear modulus ( G ) is found to decrease with increasing metalloid content and a maximum plastic strain of ∼ 3 % is obtained, despite the increase in the number of strong metal-metalloid bonds. Also, T g increases with the decrease in G , in contrast to usual behavior. By employing first-principles calculations, the results are discussed in light of atomic bonding and connectivity in the amorphous network. The findings are relevant to understanding ductility and glass transition of metallic glasses.