Brazing of 6061 aluminum alloy/Ti-6Al-4V using Al-Si-Cu-Ge filler metals
Brazing of 6061 aluminum alloy/Ti-6Al-4V using Al-Si-Cu-Ge filler metals
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DOI：
10.1016/j.jmatprotec.2011.07.014
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发表时间：
2012-01-01
影响因子：
6.3
通讯作者：
Huang, C. H.
中科院分区：
文献类型：
--
作者：
Chang, S. Y.;Tsao, L. C.;Huang, C. H.
采用Al-8.4Si-20 Cu-10 Ge和含Al-8.4Si-20 Cu-10 Ge-0.1Re的混合稀土钎料对6061铝合金/Ti-6Al-4V进行钎焊。添加20 wt.%铜和10重量%锗进入Al-12 Si填充金属使固相线温度从586 ℃降低到489 ℃，液相线温度从592 ℃降低到513 ℃。添加0.1重量%稀土元素添加到Al-8.4Si-20 Cu-10 Ge合金中，使富Al相明显细化，并使针状Al 2Cu金属间化合物转变为块状。6061铝合金/Ti-6Al-4V接头与两种钎料的剪切强度。Al-8.4Si-20 Cu-10 Ge和Al-8.4S-20 Cu-10 Ge-0.1Re在10-60 min的钎焊时间内变化不显著。在530 ℃下用Al-8.4Si-20 Cu-10 Ge钎焊的6061铝合金/Ti-6Al-4V接头的平均剪切强度约为20 MPa。稀土元素似乎改善Al-8.45i-20 Cu-10 Ge填充金属与Ti-6Al-4V的反应。添加Al-8.4Si-20 Cu-10 Ge-0.1Re的6061铝合金/TI-6Al-4V接头剪切强度达到51 MPa左右。(C)2011 Elsevier B. V.保留所有权利。
Al-8.4Si-20Cu-10Ge and mixed rare-earth elements (Re) containing Al-8.4Si-20Cu-10Ge-0.1Re filler metals were used for brazing of 6061 aluminum alloy/Ti-6Al-4V. The addition of 20 wt.% copper and 10 wt.% germanium into the Al-12Si filler metal lowered the solidus temperature from 586 degrees C to 489 degrees C and the liquidus temperature from 592 degrees C to 513 degrees C. The addition of 0.1 wt.% rare-earth elements into Al-8.4Si-20Cu-10Ge alloy caused remarkable Al-rich phase refinement and transformed the needle-like Al2Cu intermetallic compounds into block-like shapes. Shear strengths of the 6061 aluminum alloy/Ti-6AI-4V joints with the two brazing filler metals. Al-8.4Si-20Cu-10Ge and Al-8.4S-20Cu-10Ge-0.1Re, varied insignificantly with brazing periods of 10-60 min. The average shear strength of the 6061 aluminum alloy/Ti-6Al-4V joints brazed with Al-8.4Si-20Cu-10Ge at 530 degrees C was about 20 MPa. Rare-earth elements appeared to improve the reaction of the Al-8.45i-20Cu-10Ge filler metal with Ti-6Al-4V. The joint shear strength of the 6061 aluminum alloy/TI-6Al-4V with Al-8.4Si-20Cu-10Ge-0.1 Re reached about 51 MPa. (C) 2011 Elsevier B.V. All rights reserved.