Results 41 to 50 of about 37,460 (323)

Intermetallics Research in Australia [PDF]

open access: yesLe Journal de Physique IV, 1996
The past two decades have seen alloys based upon intermetallic phases evolve from the status of scientifically interesting materials with a range of attractive properties, combined with overriding disadvantages, to that of the next generation of advanced engineering alloys. This evolution, which has been achieved through a very significant research and
openaire   +4 more sources

Intermetallic particle heterogeneity controls shear localization in high-strength nanostructured Al alloys [PDF]

open access: yesarXiv, 2022
The mechanical behavior of two nanocrystalline Al alloys, Al-Mg-Y and Al-Fe-Y, is investigated with in-situ micropillar compression testing. Both alloys were strengthened by a hierarchical microstructure including grain boundary segregation, nanometer-thick amorphous complexions, carbide nanorod precipitates with sizes of a few nanometers, and ...
arxiv  

Impact of Surface Roughness on the Yield Drop of Hot‐Rolled AZX311 Mg Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Rough‐surfaced AZX311 Mg alloy samples have significantly lower yield strength than polished ones due to stress concentrators forming at V‐notch irregularities. Surface profilometry confirms higher Ra values for rough samples. Highest hardness values were observed near scratched surfaces, indicating strain localization effects near the rough surface ...
Hafiz Muhammad Rehan Tariq   +4 more
wiley   +1 more source

Influence of Shot Peening on the Isothermal Fatigue Behavior of the Gamma Titanium Aluminide Ti-48Al-2Cr-2Nb at 750 °C

open access: yesMetals, 2021
One possibility to improve the fatigue life and strength of metallic materials is shot peening. However, at elevated temperatures, the induced residual stresses may relax. To investigate the influence of shot peening on high-temperature fatigue behavior,
Christoph Breuner   +5 more
doaj   +1 more source

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld   +9 more
wiley   +1 more source

Phase-field simulation of γ' precipitates rafting and creep property of Co-base superalloys

open access: yesMaterials & Design, 2020
Co-base superalloys show attractive properties for the strengthening of γ'-Co3(Al,W) precipitates. Directional coarsening of γ' precipitates under external stress forms the rafting morphology, which plays a crucial role in the creep property.
Dong Wang   +4 more
doaj  

Study on the Microstructure and High-Temperature Oxidation Performance of β-NiAl/γ′-Ni3Al Intermetallic Compounds Fabricated by Laser Metal Deposition

open access: yesMetals, 2023
Four Ni-Al intermetallic compounds with the Al concentrations in range of 28 to 35 (in atomic percentage) have been fabricated by laser metal deposition (LMD) through mixing appropriate contents of pure Ni powder with pre-alloyed high-Al nickel aluminide
Xun He, Xiao Peng, Juan Fang
doaj   +1 more source

A review of the optical properties of alloys and intermetallics for plasmonics [PDF]

open access: yes, 2010
Alternative materials are required to enhance the efficacy of plasmonic devices. We discuss the optical properties of a number of alloys, doped metals, intermetallics, silicides, metallic glasses and high pressure materials. We conclude that due to the probability of low frequency interband transitions, materials with partially occupied d-states ...
arxiv   +1 more source

Partitioning and Coarsening Dynamics of Precipitate‐Strengthened Cr‐Si Alloys: The Role of Ge, Pt, and Mo

open access: yesAdvanced Engineering Materials, EarlyView.
The microstructure of Cr‐rich Cr‐Si‐alloys is maintained by alloying with Ge, Pt, and Mo. The effects of these elements on A15‐phase fraction, partitioning, microstructural stability, grain size, and hardness are combinable. Molybdenum is found to be the most promising alloying element for microstructural stability during high‐temperature exposure.
Anke Silvia Ulrich   +6 more
wiley   +1 more source

Quasi-one-dimensional magnons in an intermetallic marcasite [PDF]

open access: yes, 2011
We present inelastic neutron scattering measurements and first principles calculations examining the intermetallic marcasite CrSb2. The observed spin wave dispersion implies that the magnetic interactions are strongly one-dimensional with antiferromagnetic chains parallel to the crystalline c-axis.
arxiv   +1 more source

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