The effect of solution temperature,holding time,quenching water temperature,aging temperature and
time on the mechanical property of ZL114A was investigated by heat treatment experiments. The microstructure of
ZL114A before and after heat treatment was compared. The desirable heat treatment process was optimized: 540℃×14h/
water quenching(55℃)+155℃×7.5h/ air cooling ,and could be the reference for the following industrial production.