Results 81 to 90 of about 3,572 (225)
Electron Beam Welding to Join Gamma Titanium Aluminide Articles [PDF]
, 2008 A method is provided for welding two gamma titanium aluminide articles together. The method includes preheating the two articles to a welding temperature of from about 1700 F to about 2100 F, thereafter electron beam welding the two articles together at ...
Kelly, Thomas Joseph
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Prospects for Ductility and Toughness Enhancement of Nial by Ductile Phase Reinforcement [PDF]
The use of NiAl as a structural material has been hindered by the fact that this ordered intermetallic does not exhibit significant tensile ductility or toughness at room temperature.
Gibala, R. +3 more
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Metals, 2017 The dynamic recrystallization (DRX) behavior of Ti-45Al-8.5Nb-0.2W-0.2B-0.3Y (at %) alloy has been investigated through hot compression tests. The tests were executed at a temperature range of 1000–1200 °C and a strain rate range of 0.001–1 s−1 under a ...
Lin Xiang +4 more
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Smart overlay coatings - concept and practice [PDF]
, 2002 Smart overlay coatings are a functionally gradient coating system designed to provide high temperature corrosion protection over a wide range of operating conditions.
Chan, W. Y. +3 more
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An investigation of the effect of surface impurities on the adsorption kinetics of hydrogen chemisorbed onto iron [PDF]
The goal was to develop an understanding of heterogeneous kinetic processes for those molecular species which produce gaseous hydrogen degradation of the mechanical properties of metallic structural materials.
Shanabarger, Mickey R.
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Welding of gamma titanium aluminide alloys [PDF]
, 1998 An article made of a gamma titanium aluminide alloy is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, cooling the entire article to a welding ...
Kelly, Thomas J. +3 more
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Damage accumulation in multilayer thin films on gamma titanium aluminides [PDF]
, 2014 The present paper involves comprehensive investigations towards an understanding on how aggressive environments, high service temperatures and long dwell times affect damage growth and lifetime reduction of different components of automotive combustion ...
Gnitko, V. +4 more
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Journal of Advanced Materials in Engineering, 2019 In this research, an in-situ hybrid composite reinforced by Al3Zr and Al3Ti aluminide particles was fabricated by friction stir processing (FSP). The base metal was in the form of a rolled Al 3003-H14 alloy sheet, and zirconium and titanium metal powders
M. Zadali Mohammad Kotiyani +1 more
doaj
Processing of titanium aluminides by ceramic crucible induction melting [PDF]
, 1999 This work describes the processing results of TiAl alloys melted in controlled atmosphere induction furnace, using crucibles made of calcia and zirconia stabilised with yttria, calcia and magnesia, solidified and inside the crucible, in order to simulate
Barbosa, J. +2 more
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Aluminium evaporation during ceramic crucible induction melting of titanium aluminides [PDF]
, 2013 Melting TiAl based alloys in ceramic crucibles often leads to chemical contamination, alloy heterogeneity and non-metallic inclusions. The severity of such phenomena usually depends on the nature of crucible materials, the melting stock composition and ...
Barbosa, J. +2 more
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