L12 to do19 structural ordering during the fcc to hcp transformation in a CoCrTa alloyCARBOTHERMIC REDUCTION OF COLUMBITEINTERMEDIATE FORMATION OF IRON NIOBIUM TANTALUM SUBOXIDESILMENITE COMPONENTIRON-CARBON MATRIXIn solid state phase transformations, the evolution of one state into another is realized ...
The model blocks of crystals of pure metals Ni, Al and Ni3Al intermetallide with the atomic pacing corresponding to the structure L12. It was supposed that there were no defects in the calculated block. Four main stages are distinct seen on the graphs of the change of the stored energ...
The study of the triple junctions of the grain boundaries in some fcc solid solutions, ordered alloys and intermetallics with L12 has been carried out using the optical metallography and TEM methods. Two-types of the triple junctions were found in the alloys investigated (1), consisting of the...
tion fA 1一L12)[25 261.In the frame of coincidence sire lattice (CSL ) model,an an tiphas e boun dar y appear s in the plane of th e spec ial g rain bo un dar y w hen a shift o n t he B ur g ers v ec— tor of displacement shi complete (DSC1 lattice takes plac...
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铸造镁合金的晶粒细化技术
Physical and mechanical properties of single crystals of Co-Al-W based alloys with L12 single-phase and L12fcc two-phase microstructuresSingle-crystal elastic constants of Co 3 (Al,W) with the cubic L1 2 structure have been experimentally measured by resonance ultrasound spectroscopy at liquid ...
Also, order-disorder transformation occurred in both L12 and B2 phases. The different irradiation responses between the FCC and B2 phases, depend firstly on composition and secondly on crystal structure. The higher compositional complexity and complicated atomic-level lattice environment of the FCC ...
These nanoparticles are multi-elemental solid solutions instead of inter-metallic compounds, and the crystal structure possesses both the ordered L12 and the disordered FCC structures. It is suggested that the formation of nanoparticles is dominated by the effects of the high mixing entropy, the ...