Abstract
The effect of electrostatic potential (EP), specifically without current and Joule heating effect, on the precipitation in aluminum alloy during artificial aging (180°C) was investigated via microhardness testing, transmission electron microscopy (TEM), positron annihilation spectroscopy (PAS), and measurements of vacancy formation enthalpy and vacancy migration enthalpy. The results elaborated that EP promoted the nucleation of solute clusters/GP zones in the early stage during aging. After extended aging, highly dense fine precipitates were retained in Al matrix leading to an improved strength. EP-assisted artificial aging provides a new pathway to tailor the precipitation behavior in Al alloys.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
