对比研究了电解加钛,以Al Ti和Al Ti B中间合金方式向工业纯铝熔配加钛以及向电解低钛铝合金中再熔配加Al B中间合金的细化效果。结果表明,不同加钛方式对纯铝都有较强的细化作用;在钛含量相同的条件下,电解加钛的晶粒细化能力明显高于...对比研究了电解加钛,以Al Ti和Al Ti B中间合金方式向工业纯铝熔配加钛以及向电解低钛铝合金中再熔配加Al B中间合金的细化效果。结果表明,不同加钛方式对纯铝都有较强的细化作用;在钛含量相同的条件下,电解加钛的晶粒细化能力明显高于熔配加Al Ti中间合金的;钛含量较低时,熔配加Al Ti B中间合金的细化效果略好于电解加钛的,钛含量较高时,二者的细化能力相当。向电解生产的低钛铝合金中再熔配加入Al B中间合金,可明显改善晶粒细化效果,尤其在较低的钛含量时表现得非常明显。展开更多
通过对比实验,研究了电解加钛与经Al Ti、Al Ti B中间合金向工业纯铝熔配加钛的晶粒细化效果及其衰退行为,以及Al B中间合金对电解低钛铝合金的晶粒细化效果及衰退行为的影响,还分析了硼对电解低钛铝合金的晶粒细化和抗衰退行为的影响...通过对比实验,研究了电解加钛与经Al Ti、Al Ti B中间合金向工业纯铝熔配加钛的晶粒细化效果及其衰退行为,以及Al B中间合金对电解低钛铝合金的晶粒细化效果及衰退行为的影响,还分析了硼对电解低钛铝合金的晶粒细化和抗衰退行为的影响。结果表明,在钛含量为0.10%和0.15%的条件下,电解加钛晶粒细化作用的衰退速度比熔配加Al Ti中间合金要慢;熔配加Al Ti B中间合金细化晶粒作用的抗衰退能力则明显高于电解加钛和熔配加Al Ti中间合金;加Al B中间合金可有效提高电解低钛铝合金的细化效果和抗衰退能力,并使其明显高于电解加钛和熔配加Al Ti或Al Ti B中间合金。展开更多
Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer. The grain refining effect of A1-4B master alloy in the hypoeutectic Al-Si alloy prepared by using EL...Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer. The grain refining effect of A1-4B master alloy in the hypoeutectic Al-Si alloy prepared by using ELTA was investigated, and compared with those of Al-5Ti, A1-5Ti-1B and Al-4B master alloys in the similar alloy prepared by using pure Al. The results indicate that when Al-4B is added to the melt of the alloy prepared by using ELTA in terms of the Ti/B mass ratio of 5:1, the grain refining effect is better than those of Al-5Ti, Al-5Ti-1B and Al-4B master alloys. Thus, using Al-4B to refine the grain of Al-Si alloys prepared by using ELTA will possibly become a feasible way of obtaining Al-Si alloy with homogeneous and fine microstructure.展开更多
文摘对比研究了电解加钛,以Al Ti和Al Ti B中间合金方式向工业纯铝熔配加钛以及向电解低钛铝合金中再熔配加Al B中间合金的细化效果。结果表明,不同加钛方式对纯铝都有较强的细化作用;在钛含量相同的条件下,电解加钛的晶粒细化能力明显高于熔配加Al Ti中间合金的;钛含量较低时,熔配加Al Ti B中间合金的细化效果略好于电解加钛的,钛含量较高时,二者的细化能力相当。向电解生产的低钛铝合金中再熔配加入Al B中间合金,可明显改善晶粒细化效果,尤其在较低的钛含量时表现得非常明显。
文摘通过对比实验,研究了电解加钛与经Al Ti、Al Ti B中间合金向工业纯铝熔配加钛的晶粒细化效果及其衰退行为,以及Al B中间合金对电解低钛铝合金的晶粒细化效果及衰退行为的影响,还分析了硼对电解低钛铝合金的晶粒细化和抗衰退行为的影响。结果表明,在钛含量为0.10%和0.15%的条件下,电解加钛晶粒细化作用的衰退速度比熔配加Al Ti中间合金要慢;熔配加Al Ti B中间合金细化晶粒作用的抗衰退能力则明显高于电解加钛和熔配加Al Ti中间合金;加Al B中间合金可有效提高电解低钛铝合金的细化效果和抗衰退能力,并使其明显高于电解加钛和熔配加Al Ti或Al Ti B中间合金。
基金Project (0322020600) supported by the Science and Technology Foundation of Henan Province, China
文摘Electrolytic low-titanium aluminum (ELTA) was produced by adding TiO2 powder to an industrial aluminum electrolyzer. The grain refining effect of A1-4B master alloy in the hypoeutectic Al-Si alloy prepared by using ELTA was investigated, and compared with those of Al-5Ti, A1-5Ti-1B and Al-4B master alloys in the similar alloy prepared by using pure Al. The results indicate that when Al-4B is added to the melt of the alloy prepared by using ELTA in terms of the Ti/B mass ratio of 5:1, the grain refining effect is better than those of Al-5Ti, Al-5Ti-1B and Al-4B master alloys. Thus, using Al-4B to refine the grain of Al-Si alloys prepared by using ELTA will possibly become a feasible way of obtaining Al-Si alloy with homogeneous and fine microstructure.
