2021/02/19 by Julian M. Rosalie, Rosalie, Julian M., Oliver Renk +3
Engineering · Materials Science · #Aluminum Alloys Composites Properties #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metallurgy and Material Forming #Microstructure and mechanical properties
paper · pdf · doi:10.48550/arxiv.2102.09906
openalex publication_date 2021/02/19 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
A combination of high strength and reasonable ductility has been achieved in\na copper-1.7 at.%titanium alloy deformed by high-pressure torsion. Grain\nrefinement and a spinodal microstructure provided a hardness of 254 +/- 2 HV ,\nyield strength of 800 MPa and elongation of 10%. The spinodal structure\npersisted during isothermal ageing, further increasing the yield strength to\n890MPa while retaining an elongation of 7%. This work demonstrates the\npotential for spinodal microstructures to overcome the difficulties in\nretaining ductility in ultra-fine grained or nanocrystalline alloys, especially\nupon post-deformation heating where strain softening normally results in\nbrittle behavior.\n