Influence of external influences on the creep of aluminum alloys with microscopic inclusions at room temperatures

It is devoted to the experimental study of creep an aluminum alloy containing microscopic inclusions. was found that preliminary electric ignition (j<3· 10 6 A/m 2 ) material leads increase in samples. The reasons for observed changes are associated by authors with formation local areas high mechanical stresses near interface inclusion --- matrix interface. assessment level emerging thermoelastic delta T ~ 35 MPa, as well characteristic size such (~ μm). determined resultant effect residual and thermal nature, which contributes creation additional sources deformation interfacial regions. Local stress concentrators lead a number mobile dislocations, main reason change properties under consideration Keywords: Aluminum alloys, plastic deformation, creep, phase interface, dislocation dynamics.