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The influence of various filler metals on the mechanical properties of 17mm thick Ti–6Al–4V electron beam welded joints has been analysed. Autogeneous welded joints exhibit higher toughness when compared to the parent plate but this improvement was less marked than that observed in plasma arc welded joints. To achieve better toughness, without suffering unacceptable losses of strength, different morphologies...
Industrially produced Cf/C ceramic composites have been brazed to Nimonic alloys using a TiCuSil filler metal. Ιn order to accommodate the different linear coefficients of expansion between ceramic and metal as well as to provide compatibility between the surfaces to be joined, the Cf/C surface was metallized through the deposition of a chromium layer. Subsequent heat treatments were carried out to...
The use of different procedures for electron beam welding of 17mm thick Ti–6Al–4V plate and the difficulties found in this process are analysed. When this alloy was welded autogeneously the presence of significant amounts of α martensite was observed, recommending looking for another solution. In the early trials a V joint design was used but distortions and defects were detected in the welds when...
Compositional changes of the welds carried out by the electron beam welding process have been investigated in the present work. Addition of a filler metal in the weld fusion zone has been used to solve some problems by improving the behaviour of the joint by minimising either the porosity, the notching or the cracking susceptibility of the joint (Sanderson et al., Met. Constr. Br. Weld. J. (1972);...
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