Ni-Al
Phase Separation of the B2 Structure Accompanied by an Ordering in Co Al and Ni Al Binary Systems
... and Ni-Al binary systems were analysed thermodynamically by considering the free energy of the bcc phase estimated from ab initio ...Co- Al binary system, and this metastable equilibrium relates ...
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Fabrication of Nanoporous Ni by Chemical Dealloying Al from Ni-Al Alloys for Lithium-ion Batteries
... Pure Ni (purity 99.95%) and pure Al (purity ...the Ni- Al alloys. The Ni and Al were weighed in atomic ratios of the nominal compositions and mixed ...mixed Ni and ...
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Influence of Atomic Size Factors on the Phase Stability of Laves Phase in Nb Cr Ni Al and Nb V Ni Al Phase Diagrams
... ameter of V is rather larger than the average diameter of NiAl but smaller than Nb; therefore, V substitutes not only on B-sites but also on A-sites. These experimental results to- gether with information on other ...
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Modelling defects in Ni Al with EAM and DFT calculations
... – Al – Re) interatomic potential based on the MEAM method for modelling processes at the γ γ / ′ interface has been reported in ...et al [39] based on a previous model for generic fcc structures ...
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Softening by Coarsening of Ni Al B2 Phase Particles in Fe Cr Ni Al Zr Alloy
... possible. If the material is subjected to an annealing at a temperature between 873 and 1073 K that is usually used for cold worked ferrous materials, the hardness can not be decreased sufficiently because only the ...
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Mixing properties of Ni-Al liquid alloy at different temperatures
... The validity of simple statistical model or simple theory of mixing has been first established by explaining the experimental values of the thermodynamic and structural properties of Ni-Al melt at 1873 K. ...
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Study of Ni/Al Interface Diffusion by Molecular Dynamics Simulation
... of Ni based high temperature alloy is ...of Ni based high temperature alloy and its alumina coat has made the study on this material become a hotspot in the material ...of Ni/Al interface ...
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CHARACTERIZATION AND COMPARISON OF SOLAR SELECTIVE COATINGS BETWEEN NI-AL AND NI-CO ON ALUMINUM SUBSTRATE
... paint increases, the solar heat absorbance also increases. By visual inspection of prepared sample, it is seen that there is no any facial crack on samples to be prepeared.there is no any visual defects present in the ...
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Measurement of the Densities of Nickel Based Ternary, Quaternary and Commercial Alloys
... commercial Ni-based superalloys, we have used two accurate methods, namely, the modified sessile drop method (MSDM) and the modified pycnometric method (MPM) to measure the densities of liquid nickel and ...
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Investigation of Element Effect on High Temperature Oxidation of HVOF NiCoCrAlX Coatings
... on Ni-20Cr alloys was improved by small additions of Ce and Si by the formation of root shape protrusions which inhibits the crack propagation at TGO and increases the spallation resistance ...of Al from ...
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Deformation Induced Nanoscale Dynamic Transformation Studies in Zr Al Ni Pd and Zr Al Ni Cu Bulk Metallic Glasses
... It has been reported that crystallization proceeds either via an increase in temperature, which is induced by localized deformations, or a change in the chemical short-range order (CSRO) in the glassy state around the ...
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Crystallization Kinetics in an Amorphous Al Ni Mm Fe Alloy
... on Al-based amorphous alloys with high strength and good bending ductility in Al–Ni–Si system, 1) a number of Al-based amorphous alloys have been synthesised by rapid solidification ...these, ...
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Statistical Description of Mechanical Stabilization of Cu Al Ni Martensite
... martensitic transformation (MT) can be recognized by the peculiar shape of partial stress–strain loops. The detailed study of superelastic loops under compression up to different strains, and the reverse transformation ...
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Superplasticity of Cu Al Mn Ni Shape Memory Alloy
... structure appears at lower temperatures. Since the phase is very ductile due to the disordered fcc structure, improvement of the ductility for the Cu-Al-Mn-base shape memory alloys is possible by the introduction ...
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Al 2O3 -Ni composites produced with various rotational speed
... centrifugal slip casting method. The principal aim was to evaluate the influence of the centrifugal rotational speed on the microstructure and properties of the alumina-nickel composites. The slurries with the 55 vol.% ...
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Influence of Nanoscaled Surface Modification on the Reaction of Al/Ni Multilayers
... (f-j) chips with black silicon; (f) chip with 1 µm RML before treatment; (g) after treatment; (h) LSM image of the chip surface, 5 µm RML before and (i) after treatment; (j) Cross-s[r] ...
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A Microstructural Investigation of Gas Atomized Raney Type Al-27.5 at.%Ni Catalyst Precursor Alloys
... The average cooling rate for particles produced using the same atomization configuration as utilised here has been measured by [18] using the secondary dendrite arm spacing in Al-4 wt.% Cu alloys. They found that ...
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Bis[2 (dimethylamino)ethanol κ2N,O](pentane 2,4 dionato κ2O,O′)nickel(II) chloride
... the Ni—O bonds of the coordinated dmaeH groups are longer ...the Ni— O(acac) bonds [2.014 (2) and 2.015 (2) Å]. The cis O—Ni—O and O—Ni—N bond angles in (I) are close to the ideal octahedral ...
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Effect Of Macro Additions Of Zinc And Nickel On The Mechanical And Microstructural Properties Of A Modified 7xxx Aluminium Alloy
... both Al-2wt%Ni and Al-7wt%Ni samples to a maximum of ...of Al-7wt%Ni to the as-cast ...of Al-2wt%Ni show a steady increase in tensile strain to a maximum value of ...
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Effect of cooling rate and chromium doping on the microstructure of Al-25 at.% Ni Raney type alloy
... that Al Ni is the least resistant phase to leach, resulting a highly active catalyst but with poor mechanical strength ...high Al Ni concentrations are not suitable for applications such as ...
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