Nb and B effect on mechanical properties of Ti–Al based intermetallic materials

Characteristic effects of alloying elements on β solidifying titanium aluminides: A review

“…For the past three decades, titanium aluminides intermetallic alloys have been of major interests especially in the aerospace and automotive industries. This is essentially due to their attractive mechanical properties like high strength-to-weight, low density, excellent high-temperatures stiffness and strength retention [ 15 , 28 , 31 , 43 , 46 , 47 , 48 , 50 , 56 , 62 , 67 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 ]. This makes TiAl-based alloys a type of material with very high prospects of replacing nickel-based superalloys typically used for making aircraft-engine turbine parts [ 43 ].…”

“…The intermetallic Ti–Al ordered system is still a topic of extensive study because of its inherent applications for structural materials operating at elevated temperatures [ 6 , 23 , 47 , 53 , 54 , 60 , 69 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 ]. The successful integration of TiAl-based alloys parts into aircraft engines is predicted to tremendously decrease greenhouse gas emission and fuel consumption [ 5 ].…”

“…Thus, titanium aluminide has found application in making seal supports, cases and frames of aircraft engines where clearances are crucial [ 54 ]. Also, it is applied in turbocharger wheels and turbine blades of automobile and aero engines respectively [ 5 , 7 , 21 , 43 , 50 , 58 , 73 , 79 , 80 , 81 , 87 , 88 , 90 , 91 ]. Considerable decrease in fuel consumption and greenhouse gases have been achieved due to the lightweight of rotating components.…”

“…Also, it is applied in turbocharger wheels and turbine blades of automobile and aero engines respectively [49,50]. [5,7,21,43,50,58,73,79,80,81,87,88,90,91]. Considerable decrease in fuel consumption and greenhouse gases have been achieved due to the lightweight of rotating components.…”

Microstructure and Nanohardness of Ti-48Al-2Cr Alloy Solidified under High Pressure

“…As high temperature structure materials, TiAl-based alloys show excellent advantages, such as low density [1], high specific strength [2], good corrosion resistance and creep resistance [3], high hardness and strength [4]. Due to such outstanding properties, TiAl-based alloys have been considered to be promising materials for application in aircraft, gas turbines and automotive engine [5,6].…”