Observation of Ag Precipitate in CuAgZr Alloy during In Situ High Temperature TEM
CuAgZr alloy is a minor variation of CuAg alloy that is remarkably known for good combination of strength and electrical conductivity. Strengthening and conductivity enhancing of CuAgZr alloy is essentially proficient by the precipitation of Ag precipitates. The behavior of Ag precipitates at high temperature was investigated using in-situ transmission electron microscopy. These nanoscale Ag precipitates are formed in CuAgZr alloy during heating process with the average size of 5 nm. Growth of precipitates at higher temperature can be explained by the consumption of solute diffusing from smaller precipitates. Dislocation looping at high temperature would be the effects of a large lattice strain along matrix/precipitate interface that would retard the dislocation movement.
Prof. Haider F. Abdul Amir
W. Piyawit and P. Buahombura, "Observation of Ag Precipitate in CuAgZr Alloy during In Situ High Temperature TEM", Solid State Phenomena, Vol. 263, pp. 50-54, 2017