The structure of intermediate phases in alloys of titanium with iron, cobalt, and nickel

Phase Diagrams of the Titanium-Aluminum, Titanium-Chromium-Iron, and Titanium-Oxygen Alloy Systems

“…No evidence was found of the compound Ti 2 Fe (36.8% Fe), reported by other investigators (14,18). The microstructures of the alloys in the S+ TiFe fi-eld show a consistent increase in the amount of TiFe as the iron content increases, and no other phase was indicated.…”

Structure and stability of Laves phases part II—structure type variations in binary and ternary systems

“…The Co-Ti system was one of the first where the occurrence of two different Laves phase modifications was observed [55,56]. Although there were several experimental studies which failed to observe both structure variants [57][58][59], today there is general agreement that the hexagonal C36 and the cubic C15 polytype exist as stable phases in two separate homogeneity ranges [60][61][62][63][64][65][66][67][68][69][70] (see Fig. 3a).…”

Physical metallurgy of Ti–Ni-based shape memory alloys

“…The presence of a single phase ''TiNi'' near the equiatomic composition was first recognized by Laves and Wallbaum [45] at higher temperatures. Duwez and Taylor [46] first reported the decomposition of TiNi into Ti 2 Ni and TiNi 3 at 800°C (and at 650°C). 3 However, Margolin et al [47], who used higher purity alloys, did not find any evidence of such decomposition.…”