范学义,董允,林晓娉,王铁宝,李丹,万志永,李娅珍

• 1:河北工业大学材料科学与工程学院
• 2:戴卡轮毂制造有限公司

摘要(Abstract)：

通过重熔试验研究Al-5Ti-1B和Al-10Sr中间合金在A356熔体中的遗传效应。结果表明:A356合金经熔体处理后流动性较母材提高17.36%,T6处理后α-Al枝晶细化,二次枝晶间距仅为16.8μm,共晶硅圆整,抗拉强度达269 MPa、屈服强度203MPa、伸长率12.5%、硬度92 HBW。伴随重熔,细化变质效果逐渐衰退,熔体质量下降,以致力学性能和流动性下降。试验发现固溶后快淬可减小变质衰退带来的影响。

关键词(KeyWords)： 遗传效应;变质;细化;A356铝合金

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 范学义,董允,林晓娉,王铁宝,李丹,万志永,李娅珍

DOI: 10.13289/j.issn.1009-6264.2010.02.025

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