摘要
在7A04铝合金时效过程中对其施加矩形波磁场,通过改变加磁时效时间、温度及磁感应强度,研究其对析出物产生的影响,并与常规单级时效工艺进行对比。结果表明:当加磁时效温度逐渐升高或加磁时效时间延长时,析出物尺寸均会逐渐增大;在加磁时效过程中磁感应强度改变时,铝合金时效析出物的尺寸及分布状态也会发生变化;当加磁时效温度为110℃、时效时间为60 min、磁感应强度为22. 3 m T时,加磁时效工艺对7A04铝合金时效作用较明显,析出物尺寸为0. 183μm且分布较均匀弥散。
The effect of the aging time,temperature and magnetic field strength on the precipitation was studied and compared with the conventional single-stage aging process of 7 A04 aluminum alloy,when a rectangular wave magnetic field was applied to the process.The effect of the aging time,temperature and magnetic field strength on the precipitation was studied and compared with the conventional singlestage aging process of 7 A04 aluminum alloy,when a rectangular wave magnetic field was applied to the process.The results show that when the magnetic aging temperature is gradually increased or the magnetic aging time is prolonged,the size of the precipitates is gradually increased.When the magnetic field strength changes during the aging process,the size and distribution of the precipitates of the aluminum alloy also change.When the magnetic aging at 110 ℃ for 60 min with the magnetic field strength of 22.3 m T,the precipitate size is 0.183 μm and its distribution is evenly dispersed,that shows a significant effect of the magnetic field on the aging process of 7 A04 aluminum alloy.
作者
于文霞
邢淑清
蒙耀鑫
张思雨
麻永林
Yu Wenxia;Xing Shuqing;Meng Yaoxin;Zhang Siyu;Ma Yonglin(School of Material and Metallurgy,Inner Mongolia University of Science & Technology,Baotou Inner Mongolia 014010,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2019年第5期182-186,共5页
Heat Treatment of Metals
基金
内蒙古自然科学基金(2018MS05008)
内蒙古科技大学电磁冶金与材料新技术创新团队基金(52303001)
关键词
磁场
铝合金
时效
磁感应强度
析出物
magnetic field
aluminium alloy
aging
magnetic induction intensity
precipitates
