Abstract
The stress dependence of the steady state homogeneous plastic flow rate in amorphous Pd 82Si 18 has been measured over a large stress range and shown to obey a hyperbolic sine relation. A direct consequence of this relation is a transition from linear, Newtonian viscous flow to a non-linear regime, which we observed at τ ~ 300 MPa. The sheared volume is found to be 48 Å 3. The apparently conflicting literature data for strain rate sensitivity are reconciled with each other and with this new data by taking into account the stress range of the tests.
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