A metastable HCP intermetallic phase in Cu-Al bilayer films
نویسنده
چکیده
منابع مشابه
Phase formation in ion-irradiated and annealed Ni-rich Ni-AI thin films
Phase formation was studied in ion-irradiated multilayer and coevaporated Ni-20 at. % Al films supported by Cu, MO, and Ni transmission electron microscopy (TEM) grids. Irradiation with either 700-keV Xe or 1.7-MeV Xe, to doses sufficient to homogenize the multilayers 07.5X 1015 cmm2), resulted in the formation of metastable supersaturated y and HCP phases in both film types. Post-irradiation a...
متن کاملThe Influence Of Process Control Agent (P.C.A)’S State on Expedition of Mechanical Alloying of Anostructure Tial(Γ) Alloy
In this research, the effect of two process control agent: methanol (liquid state) and stearicacid (solid state) on mechanical alloying process of Ti and Al with equal at%(Ti50Al50) wereinvestigated. Phase transformation at presence of two PCA was: at first, powder mixture wastransformed to a metastable solid solution of Al in Ti lattice (disordered hcp) and then transformed toamorphous phase w...
متن کاملبررسی تشکیل ترکیبات بینفلزی در ریختهگری مرکب دوفلزی مس و آلومینیوم
The purpose of this article is to study the formation of intermetallic compounds (IMCs) at the interface of Al/Cu bimetal produced by compound casting of molten Al in solid copper tubes. The mechanism of the intermetallic compounds formations at the interface, the effects of molten aluminum pouring temperature and solid copper tubes preheating tempreture, were investigated on the IMCs type...
متن کاملMicrostructural evolution in Al–Cu–Fe quasicrystalline thin films
Transmission electron microscopy (TEM) was performed to study the microstructural evolution in Al–Cu–Fe quasicrystalline thin films. Thin films were grown by magnetron sputtering on sodium chloride crystals, which were subsequently dissolved in water to acquire free-standing films. Studies were conducted on the as-deposited sample, and samples that were annealed at 400 8C in Argon and 500 8C in...
متن کاملThe Solidification Behavior of AA2618 Aluminum Alloy and the Influence of Cooling Rate
In AA2618 aluminum alloy, the iron- and nickel-rich intermetallics formed during solidification are of great effect on the mechanical properties of the alloy at both room temperature and elevated temperatures. However, the solidification behavior of the alloy and the formation mechanism of the intermetallics during solidification of the alloy are not clear. This research fills the gap and contr...
متن کامل