Sr变质对AHS-2铝合金组织及性能的影响
Hot Working Technology（2016）
Abstract
研究了Sr变质对AHS-2铝合金组织及性能的影响.结果表明:当Sr加入量为0.5％、变质温度为740℃、变质后保温时间为60 min时,所得到的合金组织及性能最佳,共晶硅组织呈细小颗粒状和蠕虫状,且均匀弥散分布于α-A1合金基体中,其抗拉强度为224.1 MPa,伸长率为0.8％.
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