The recently developed refractory multi-principle element alloy (MPEA), AlMo$_{0.5}$NbTa$_{0.5}$TiZr, shows an interesting microstructure with cuboidal precipitates of a disordered phase (${\beta}$, bcc) coherently embedded in ordered (${\beta}'$, B2) matrix, unlike the conventional Ni-based superalloys where (${\gamma}'$, L12) is precipitate and (${\gamma}$, fcc) matrix phase. It becomes criti...

This study investigates fracture behaviour of sandwich structures with foam core slits. These slits are typically machined in the materials to improve manufacturability but inevitably lead material discontinuities such as resin-starving regions or voids. Using phase-field method, which does not require exact location crack initiation path known a prior, complex process different resin-filling i...

A three-dimensional phase-field model is proposed for simulating the magnetic martensitic phase transformation. The considers a paramagnetic cubic austenite to ferromagnetic tetragonal martensite transition, as it occurs in Heusler alloys like Ni2MnGa, and based on Landau 2-3-4 polynomial with temperature dependent coefficients. paramagnetic–ferromagnetic transition recaptured by interpolating ...

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We combine spin polarised density functional theory and thermodynamic mean field theory to describe the phase transitions of antiperovskite manganese nitrides. We find that the inclusion of the localized spin contribution to the entropy, evaluated through mean field theory, lowers the transition temperatures. Furthermore, we show that the electronic entropy leads to first order phase transition...

coastal fars gravimetry project in fars province was carried out to find the buried salt domes and to determine characteristics of faults in this area. the lavarestan structure was covered by 4203 gravimetry stations in a regular grid of 1000*250 m. depth structural model of this anticline made in previous studies was based on geological evidences and structural geology measurements. in order t...