Evidence of twinning-induced plasticity (TWIP) and ultrahigh hardness in additively-manufactured near-eutectic Ni–Nb

The temperature-dependent hardness of additively-manufactured near-eutectic Ni–Nb was investigated. This alloy was found to have solidified into a two-phase nanoscale microstructure with peak hardness of H ≅ 14–17 GPa at temperatures up to 400 °C, above which irreversible softening was observed des...

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Veröffentlicht in:	Journal of materials science 2023-06, Vol.58 (23), p.9723-9736
Hauptverfasser:	Jones, Morgan R., Bobbitt, N. Scott, DelRio, Frank W., Wilson, Mark A., Howard, Hannah C., Endsley, Melina A., Pegues, Jonathan W., Lu, Ping, Kustas, Andrew B., Beyerlein, Irene J., Chandross, Michael, Argibay, Nicolas
Format:	Artikel
Sprache:	eng
Schlagworte:	3D printing Additive manufacturing alloys brittleness Characterization and Evaluation of Materials Chemical synthesis Chemistry and Materials Science Classical Mechanics Comparative analysis Crystallography and Scattering Methods Eutectic temperature Grain boundary sliding Hardness Heat resistant alloys Intermetallic compounds Manufacturing Materials Science Mechanical properties Mechanical twinning Metals & Corrosion microscopy Microstructure Molecular dynamics Multiphase nanocrystals Nickel base alloys Niobium Nucleation Plastic deformation Plastic properties plasticity Polymer Sciences Production methods Rapid solidification Simulation methods Solid Mechanics solidification Superalloys Temperature dependence Twinning (Crystallography)
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