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Currently, heat-resistant nickel alloys are widely used in these industries [2].
Titanium aluminides are promising candidates for replacing nickel alloys – α2-Ti3Al, γ-TiAl и TiAl3 [3, 4].
Couret, High temperature materials for aerospace applications: Ni-based superalloys and γ-TiAl alloys.
Weimer, TiAl alloys in commercial aircraft engines.
Liang, The microstructures and mechanical properties of hybrid in-situ AlN-TiC-TiN-Al3Ti/Al reinforced Al-Cu-Mn-Ti alloy matrix composites, Journal of Alloys and Compounds, 903 (2022) 163902. https://doi.org/10.1016/j.jallcom.2022.163902 [11] L.

The densities of the compounds are decreasing with increasing Co doping with a maximum value of 4.2 g/cm3.
Street (1998), Journal of Alloys and Compounds 281 32
Carey (1991), Journal of Applied Physics, 75, 6789
Batlle (1991), Journal of Applied Physics, 70, 1614
Journal of Magnetism and Magnetic Materials, 312(2), 418

The aim of the production technology is to fulfil the processing conditions of the vulcanisation of India rubber compounds in moulding tools using production machinery.
The shaped parts of thread pattern are made by pressure or gravity casting from aluminium or magnesium alloys.
Two essential requirements have to be met when resolving the composition of alloys.
The most problematic part is the tyre- thread area, which is made by using aluminium alloys.
For this reason, the experiment was aimed at observing the aluminium alloys´ contaminations.

Recent papers highlighted that co-doped FeCrAl alloys show improved scale adhesion and slower scale growth rate compared to similar alloys with single RE additions.
Almost all of the studied alloys were melted and cast.
Although the global mass gain of alloys containing Hf as reactive element is lower than that obtained for Zr doped alloys, the latter ones exhibit a more protective behaviour.
In fact the co-rolling and annealing process allows to reach an Al concentration higher than 7% and consequently an increased Al reservoir without facing problems related to the formation of brittle intermetallic compounds.
These compounds are usually formed in FeCrAl alloys produced by means of traditional metallurgical processes when Al concentration exceeds 5%.

Abstract: The aim of this paper is to prepare an in-situ composite of 6061 TiB2 particles using vortex method and study the chemical kinetics of the ongoing in-situ reaction by X-ray diffraction (XRD) technique.
Therefore, the aim of this study is to analyze the chemical kinetics of the process used to prepare 6061 Al alloy-TiB2 composite. 2 Experimental Details Commercial Al 6061 alloy reinforced with different amounts (2-12wt. %) of TiB2 was used for analyzing the chemical kinetics.
Ma, "Microstructural and mechanical characteristics of in-situ metal matrix composites" A Review Journal, Material Science and Engineering, 29 (2000) 49-113
Chung, "In Situ Al-TiB composite obtained by stir casting" journal of material science 31, 1996, 311-315
Wang, " Effect of In situ TiB2 particle reinforcement on the creep resistance of hypoeutectic Al -12 Si Alloy", Journal of Alloys and Compounds, 389,275-280,2005

Similar situation is in the case of Fe-Al alloys [5].
In the oxide layers, also no silicon-containing compound was identified [5].
Therefore, this work aims to find the main reason for the increased oxidation resistance in presence of silicon.
Journal of Alloys and Compounds 504 (2010) 320-324
Journal of Alloys and Compounds 497 (2010) 90–94.

Most relevant research aimed to improve NiTi intermetallic compound strength both at room and high temperature and the microstructure and mechanical properties.
Structural materials of intermetallic compounds[M].
NiTi-base intermetallic alloys strengthened by Al substitution[J].
The mechanical properties of intermetallic Ni50-xTi50Alx alloys (x=6,7,8,9)[J].
Journal of Alloys and Compounds, 2005, 389(1-2): 80-94.

A review of metastable beta titanium alloys.
State of the art in beta titanium alloys for airframe applications.
Low-cost titanium alloys?
Journal of Alloys and Compounds, 793, 271-276
Journal of Alloys and Compounds, 810, 151937

Generally, these intermetallic compounds are detrimental to the mechanical properties because they are easy to become crack initiation and provide preferential crack propagation paths.
Fig.8 shows the X-ray diffraction peaks near 78°of 7A56 alloys at different states.
Application of modern aluminum alloys to aircraft.
Journal of Alloys and Compounds. 2017, 691: 482-488
Journal of Alloys and Compounds. 2014, 585: 19-24

For the rolled alloys, there is little difference between the hardness of the alloys with different rolling rate.
The aim of this study, the effect of HPT on aging behavior and microstructure in Al-Mg-Si alloys were investigated by TEM and those results were compared with cold-rolled samples before aging.
The black contrast was supposed as Ag-containing compound.
(3)The black contrast was supposed as Ag-containing compound at the grain boundaries
[2]Junichi Kaneko: Journal of Japan Institute of Light Metals, Vol.27 (1977) 384-390 [3] Zenji Horita : Journal of Japan Institute of Light Metals, Vol.60 (2010) 134-141