Effects of boron, Hf and Ta content on boride morphology and microstructure of β-solidified γ-TiAl alloys

Microstructural, microhardness and electrochemical properties of heat-treated LENS in-situ synthesized Ti–Al-x(Mo, Si) alloys

“…It is clear from the microhardness values that heat treatment at 1200 °C temperatures promoted grain development, which in turn caused all of the heat-treated samples to have lower microhardness. According to earlier research, colony size and interlamellar distance are related to the strength of γ-TiAl alloy [ 43 ]. Higher strength is donated by smaller colonies and less inter-lamellar separation.…”

“…Using La and B as alloying elements, Huang et al [ 41 ] examined the mechanical characteristics, microstructural development, and grain refinement of the LAMed TiAl alloy. The impact of Ta, Hf and boron, concentration on the microstructure and boride morphologies in Ti-43.5Al–4Nb–1Mo–0.5B alloy was examined by Wang et al [ 43 ]. Ye et al's work [ 44 ] applied a first-principles method to figure out the stability of TiAl, phase, bulk moduli, lattice structure equilibrium and temperatures of production of β, β o , ω" and ω o of TiAl with various standard β stabilizing elements (Mo, Nb, Ta, Mn, W, V, and Cr).…”