快速凝固Al-Ti-B和Cu-P对Al-13.5Si-xCu-yNi合金组织和性能的影响  

Effect of Rapid Solidified Al-Ti-B and Cu-P on Al-13.5Si-xCu-yNi Alloy Structure and Properties

作　　者：王季明 张庆昕[1] 扬帆[2] 崔春翔[2] 孙继兵[2] 董天顺[2] 

机构地区：[1]石家庄金刚内燃机零部件集团有限公司,河北省石家庄市052165 [2]河北工业大学材料科学与工程学院,天津300130

出　　处：《天津冶金》2009年第5期30-33,共4页Tianjin Metallurgy

摘　　要：在ZL108中加入Cu-N(iNi含量为40%)中间合金,制成Al-13.5Si-xCu-yNi合金,研究此种合金较ZL108合金在力学性能上的优越性,并采用经快速凝固处理的Al-Ti-B和Cu-P薄带对其进行细化变质处理,观察经细化变质处理后的合金的显微组织并测试其力学性能,确定其最佳变质方案,与经普通块状变质剂变质后的合金进行比较,结果表明经快淬薄带状变质剂变质后的合金组织更加细化,综合力学性能也有较大的提高。The Al-13.5Si-xCu-yNi alloy was made by adding Cu-Ni intermediate alloy (Ni content: 40%) in ZL108 alloy. The advantages of mechanical properties of the alloy compared with ZL108 alloy are studied. The alloy is refined and modified with fast solidified Al-Ti-B and Cu-P thin ribbon. The best modification plan is formulated by observing alloy microstructure after refinement modification and testing its mechanical properties. The results show that rapid quenching ribbon modifier can provide finer alloy microstructure and improved overall mechanical properties compared with common massive modifier.

关 键 词：Cu-Ni中间合金 快速凝固 变质处理 试验 组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程]