电脉冲孕育处理对Al-Cu-Mn合金时效过程的影响Effects of electric pulse modification on aging process of AI-Cu-Mn alloy
王冰,王建中,齐锦刚,张振斌,曹丽云
摘要(Abstract):
考察了不同电脉冲孕育处理参数对Al-Cu-Mn合金时效过程的影响,结果表明:电脉冲孕育处理加速了Al-5%Cu-0.8%Mn合金时效进程,缩短了时效时间,使合金最大显微硬度较未处理试样提高了13%~17%;但不同的电脉冲参数影响时效过程的程度不同,一定范围内,500V电压,30s处理时间,频率为3Hz的电脉冲参数在740℃处理时,合金时效后的显微硬度最高。
关键词(KeyWords): 电脉冲孕育处理;时效析出;显微硬度;铝合金
基金项目(Foundation): 国家自然科学基金项目(50674054)
作者(Author): 王冰,王建中,齐锦刚,张振斌,曹丽云
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