Joining Ti-47Al-2Cr-2Nb with a Ti/(Cu,Ni)/Ti clad-laminated braze alloy

被引：22
作者：
Guedes, A
Pinto, AMP
Vieira, MF
Viana, F
机构：
[1] Univ Minho, Dept Engn Mecan, P-4800058 Guimaraes, Portugal
[2] Univ Porto, Fac Engn, GMM IMAT, Dept Met & Mat Engn, P-4200465 Oporto, Portugal
来源：
JOURNAL OF MATERIALS SCIENCE | 2003年 / 38卷 / 11期
关键词：
D O I：
10.1023/A:1023948917115
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The joining of Ti-47Al-2Cr-2Nb using Ti-15Cu-15Ni (wt%) as braze alloy was investigated. Experiments were conducted at 980 and 1000degreesC for 10 min. The microstructure and the chemical composition of the interfaces were studied by scanning electron microscopy (SEM) and by energy dispersive X-ray spectroscopy (EDS), respectively. For both processing conditions the reaction between the gamma-TiAl alloy and the braze alloy produced layered interfaces, which are essentially composed of alpha(2)-Ti3Al and of Ti-Ni-Cu-Al and Ti-Ni-Cu intermetallic compounds. Microhardness tests showed that all reaction layers are harder than either the gamma or the (alpha(2)+gamma) lamellar grains of the intermetallic alloy. (C) 2003 Kluwer Academic Publishers.
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页码：2409 / 2414
页数：6
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