衰退行為的影響
宋天福1，翁永剛1， 左秀榮1， 謝敬佩1, 2
( 1. 鄭州大學 物理工程學院材料物理教育部重點實驗室， 鄭州 450052；
2. 河南科技大學 材料科學與工程學院， 洛陽 471003)
摘 要: 通過對比實驗， 研究了電解加鈦與經(jīng)Al-Ti、 Al-Ti-B中間合金向工業(yè)純鋁熔配加鈦的晶粒細化效果及其衰退行為，以及Al-B中間合金對電解低鈦鋁合金的晶粒細化效果及衰退行為的影響，還分析了硼對電解低鈦鋁合金的晶粒細化和抗衰退行為的影響。 結(jié)果表明， 在鈦含量為0.10%和0.15%的條件下，電解加鈦晶粒細化作用的衰退速度比熔配加Al-Ti中間合金要慢；熔配加Al-Ti-B中間合金細化晶粒作用的抗衰退能力則明顯高于電解加鈦和熔配加Al-Ti中間合金； 加Al-B中間合金可有效提高電解低鈦鋁合金的細化效果和抗衰退能力，并使其明顯高于電解加鈦和熔配加Al-Ti或Al-Ti-B中間合金。
關(guān)鍵字: 電解低鈦鋁合金； Al-B中間合金；晶粒細化
LIU Zhong-xia1,SONG Tian-fu1, WENG Yong-gang1,
ZUO Xiu-rong1
（ 1. Laboratory of Materials Physics of Ministry of Education of China,
Zhengzhou University, Zhengzhou 450052, China;
2. School of Materials Science and Engineering,
Henan University of Science and Technology, Luoyang 471003, China）
Abstract: The grain refinement effect and fading behaviors of titanium added to commercial pure aluminum by electrolysis and by Al-Ti and Al-Ti-B master alloy, and added to electrolytic low-titanium aluminum alloys by Al-B master alloy were investigated through comparing experiment. The experiment results show that when titanium content is 0.10% or 0.15%, the fading of grain refinement of titanium added by electrolysis is slower than that of titanium added by Al-Ti master alloy. After Al-Ti-B master alloy added into pure aluminum, the resisting fading ability of grain refinement is superior to those of above two kinds of refining methods in the whole holding time. The Al-B master alloy can improve greatly the grain refinement effect and the resisting fading ability of electrolytic low-titanium aluminum alloys and make it much better than that of the titanium added by electrolysis, Al-Ti or Al-Ti-B master alloy.
Key words: electrolytic low-titanium aluminum alloy; Al-B master alloy; grain refinement
