Selecting of Aluminium Casting Alloys for Plasmochemical Ceramic Coatings

Perspective high strength aluminium alloys of new generation based on Al–Ni–Mn–Fe–Si–Zr system

“…However, in fields where heating details to 300-350uC is possible, aluminum alloys still have not found wide use, although they are promising, especially in combination with new technologies of depositing multifunctional coatings. 4,5 The insufficient interest in aluminum castings is largely associated with the fact that designers, as a rule, prefer already known grade alloys rather than new designs.…”

“…Secondary inclusions of the phase Al 3 Zr (dispersoids) which are coherent of aluminum matrix, with dimensions less than 10 nm, are the most effective hardeners in aluminum alloys. [1][2][3][4][5][6] Strengthening from these nanoparticles, in contrast with secondary inclusions of Al 2 Cu, is retained after prolonged annealing at temperature of 300-350uC.…”

Scientifically Based Choice of Heat-Resistant Cast Aluminum Alloys of New Generation

“…This is especially topical for applications where one of the key requirements is the limitation of the article weight. However, in fields where heating details to 300-350 0 C is possible, aluminum alloys still have not found wide use, although they are promising, especially in combination with new technologies of depositing multifunctional coatings [4,5].…”

“…This is especially topical for applications where one of the key requirements is the limitation of the article weight. However, in fields where heating details to 300-350 0 C is possible, aluminum alloys still have not found wide use, although they are promising, especially in combination with new technologies of depositing multifunctional coatings [4,5].The insufficient interest in aluminum castings is largely associated with the fact that designers, as a rule, prefer already known grade alloys rather than new designs.One of the most essential disadvantages of industrial aluminum alloys is their lowered thermal stability. Working temperatures for even the best AM5 alloys based on the Al-Cu system (GOST (State Standard) 1583-93) do not exceed 250-300 0 C [3].…”

“…A special role is played by zirconium, which under certain technological modes allows us to realize the dispersion strengthening due to Al 3 Zr nanoparticles with L12 structure. Secondary inclusions of the phase Al 3 Zr (dispersoids) which are coherent of aluminum matrix, with dimensions less than 10 nm, are the most effective hardeners in aluminum alloys [1][2][3][4][5][6]. Strengthening from these nanoparticles, in contrast with secondary inclusions of Al 2 Cu, is retained after prolonged annealing at temperature of 300-350 0 C.…”