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Six snapshots depicting the time evolution of a Pd nanowire during the spontaneous, surface-stress-driven, fcc to bct phase transformation at . Snapshots of the Pd wire at 1, 7, 11, 15, 20, and , respectively, are shown here.
Snapshots of the wire at strains 0.125%, 6.6%, 15.4%, 36.8%, and 44.1%, respectively, depicting the dynamic progression of the bct to fcc phase transformation in the Pd wire loaded in tension at .
Stress-strain curve for the Pd wire undergoing reversible bct to fcc phase transformation during loading and unloading at .
Stress-strain curve for the Pd wire during loading and unloading at . At this cross-sectional area, upon loading and unloading, the nanowire maintains the fcc crystal structure and undergoes reversible lattice reorientation from the (original) structure to the (stretched) wire structure.
Stress-strain response during quasistatic loading of both and Pd wires (the dotted lines indicate the plateau stresses during the bct to fcc phase transformation).
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