Small addition of Sc can enhance the age hardening response of the Al-15Ag alloy while the time needed to aattain the ageing peak is prolonged.

• 在Al-15Ag合金中添加0.；2%25Sc(质量分数；下同)；可以增强合金在190℃和350℃时效的时效硬化效果；延长峰时效的到达时间。