Ambient-temperature time-dependent deformation of cast and additive manufactured Al-Cu-Mg-Ag-TiB2 (A205)

Creep Behavior of Additively Manufactured High Strength A205 Aluminum Alloy

“…A comparison is made between the creep performance in the present work and that of cast 3 wt.% TiB 2 /Al-Cu-Mg-Ag alloy [16] ; this reveals that the cast counterpart has slightly better ( ≈ factor of 3) creep resistance than the LPBF component. Similar observations were made by Shakil et al [17] for ambient temperature creep of the cast and the AM A205 owing to a lower density of Ω-precipitates and higher PFZ fraction in the AM alloy.…”

“…Potential structural applications of the LPBF A205, such as heat exchangers [13] , require an understanding of high-temperature mechanical behavior, especially creep. The creep behavior of Al-Cu-Ag-Mg alloys has been studied previously [14][15][16][17][18] , and there is a consensus that A205 alloy derives its strength from co-precipitation of 𝜃′ / 𝜃′′ and Ωphases in the intragranular region [19] . Due to the apparent stability of Ω-precipitates, these alloys show superior creep properties up to 200°C.…”

“…On the other hand, literature on high-temperature mechanical behavior, especially creep, of AM A205 alloy is scarce. The recent efforts at understanding the creep behavior of AM A205 include Shakil et al [17] , who investigated room temperature indentation creep of the cast and AM A205 in the T7 condition and concluded that the cast condition had better creep resistance than AM counterparts due to higher number density of Ω and a lower fraction of precipitate-free zone (PFZ) at grain boundaries in the cast microstructure. However, there are no studies on the creep behavior of A205 alloy at high temperatures (150-200°C) at which the components are expected to be used in service; this forms the core goal of this work.…”

Effect of Processing Parameters and Heat Treatment on Selective Laser Melted Al-Cu-Mg-Ag Alloy

“…Research so far has confirmed that 2xxx series aluminum alloys without nucleating agents could be better processed in a relatively high input energy density. Shakil et al [11,12] fabricated a full-density A205 sample with an in-situ inoculation strategy at a low level of energy density. Research on the SLM formation of 2xxx series aluminum alloy, especially the subsequent heat treatment remains insufficient yet [13].…”

WC Takviyeli AlCuMg Kompozitlerin Erimiş Tuz İçinde Üretimi ve Karakterizasyonu

“…TM yöntemiyle alaşımın kimyasal kompozisyon kontrolü sağlanabilmektedir. Toz metalurjisi, döküm, talaşlı imalat, sıcak ve soğuk presleme gibi üretim yöntemlerine alternatif olarak geliştirilmiştir [1][2][3]…”