上清充通大￥ Recovery SHEAMGRAI DUD TONO UHTVEREETTY Properties affected by recovery changes in stored energy recrystallization 3 ·-70c→recovery ·-20c→recrystallization 2 recovery -150 -120-90 60 30 0 30 60 Temperature (C) The recovery of 99.999%Al deformed to a true strain of 6.91 at 77K as measured by differential scanning calorimetry,(Schmidt Haessner 1990) Institute of Forming Technology Equipment 9Recovery Institute of Forming Technology & Equipment 9 Properties affected by recovery The recovery of 99.999% Al deformed to a true strain of 6.91 at 77K as measured by differential scanning calorimetry, (Schmidt & Haessner 1990) • changes in stored energy • ‐70oC → recovery • ‐20oC → recrystallization recrystallization recovery