Al-5Ti-0.35C对ZLSi7Cu2Mg铝合金显微组织和力学性能的影响
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摘要
改变Al-5Ti-0.35C中间合金在ZLSi7Cu2Mg铝合金中的加入量、浇注温度和静置时间,通过正交试验,确定了最好的试验方案:Al-5Ti-0.35C加入量2.0%,浇注温度705℃,静置时间7 min,测试其热处理(固溶+时效)后力学性能达到σb=385MPa,δ=7.83%。并在此基础上研究了Al-5Ti-0.35C中间合金对ZLSi7Cu2Mg合金组织和性能的影响。
By changing the addition amount, pouring temperature and holding time of Al-5Ti-0.35 C alloy in ZLSi7Cu2 Mg aluminum alloy, the best experimental scheme was determined through or thogonal test. When a ddition amount2.0%, pouring temperature 705℃, holding time 7min,the mechanical properties after heat treatment was measured, which could reach σb=385MPa, δ=7.83%. On the basis of the research, the effects of Al-5Ti-0.35 C alloy on the textures and property of the alloy were studied.
By changing the addition amount, pouring temperature and holding time of Al-5Ti-0.35 C alloy in ZLSi7Cu2 Mg aluminum alloy, the best experimental scheme was determined through or thogonal test. When a ddition amount2.0%, pouring temperature 705℃, holding time 7min,the mechanical properties after heat treatment was measured, which could reach σb=385MPa, δ=7.83%. On the basis of the research, the effects of Al-5Ti-0.35 C alloy on the textures and property of the alloy were studied.
引文
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[3]Sigworth K.The grain refining of aluminium and phase relationships in the Al-Ti-B[J].Metall.Trans,1984(15):227-282.
[4]丁丽娜,刘相法,边秀房.钛化物在铝熔体中的沉淀现象[J].材料科学与工艺,2003,11(2):185-188.
[5]姜文辉,韩行霖.Al-Ti-C中间合金晶粒细化剂的合成及其细化晶粒作用[J].中国有色金属学报,1998,8(2):81-144.