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Filtering by: Date issued sim 2007-12-26 Has journal sim Applied Physics Letters

Characterization of fatigue-induced free volume changes in bulk metallic glass using positron annihilation spectroscopy

Creator:

Vallery, R. S., Liu, M., Gidley, D. W., Launey, M. E., and Kruzic, J. J.

Abstract:

Depth-profiled Doppler broadening spectroscopy of positron annihilation on the cyclic fatigue-induced fracture surfaces of three amorphous Zr₄₄Ti₁₁Ni₁₀Cu₁₀Be₂₅ metallic glass specimens reveals the presence of a 30–50 nm layer of increased free volume that is generated by the propagating fatigue crack tip. The presence and character of this fatigue transformation zone...

Resource Type:

Article