Contribution to ternary system Al–Ti–B Part 2 – Study of alloys in Al–AlB₂–TiB₂triangle

Relationship between microstructure, cytotoxicity and corrosion properties of a Cu–Al–Ni shape memory alloy

“…In the largest particles analysed the atomic ratio Al:B was very close to 1:12. According to the literature B and Cu do not form a binary compound, complex borides containing Cu exhibit much higher Cu contents than in our analysis and the determined Ni contents were much too low for the formation of ternary Ni-B-Al compounds [47][48][49]. Therefore, it seems likely that the boride particles contain AlB12, while the detection of other elements is a consequence of the interaction volumes being larger than the particle size.…”

The formation of AlB2 in an Al–B master alloy

“…Although the AlB 12 phase is only stable at temperatures above 975 • C or at a boron concentration more than 44.5 wt.% as shown in the Al-B phase diagram in Fig. 1, its presence at lower temperature was reported in Al-B alloys [9,19]. The existence of AlB 12 in a KF-AlF 3 flux/alloy interface was also reported on the reactions of KBF 4 and aluminium [16,20].…”

“…The XRD pattern shows weak AlB 12 peaks. The AlB 12 peaks are always difficult to be resolved even on alloys that contain high percentages of AlB 12 phase [9]. Although the AlB 12 phase is only stable at temperatures above 975 • C or at a boron concentration more than 44.5 wt.% as shown in the Al-B phase diagram in Fig.…”

“…According to the phase diagram, a peritectic reaction, L + AlB 12 → AlB 2 , takes place at 975 • C. There is a discrepancy about the peritectic temperature, which has been given in different numbers by different investigators ranging from 956 • C to 1350 • C [5][6][7][8] the peritectic reaction temperature. The presence of AlB 12 was also reported in Al-Ti-B master alloys that have been produced via arc melting of aluminium and boron at 800 • C [9]. The presence of AlB 12 at temperatures lower than 975 • C causes confusion regarding the stabilities of the boride phases in aluminium.…”

Effect of grain refiner-modifier interaction on the performance of A356.2 alloy /

“…6 Higher additions of Ti and B, however, cause the formation of Ti-based intermetallic compounds within the eutectic region. 7 Furthermore, the eutectic silicon-particle characteristics of size and morphology have a significant influence on the mechanical properties of Al-Si-Mg alloys.…”