Strengthening mechanisms in a high-strength bulk nanostructured Cu–Zn–Al alloy processed via cryomilling and spark plasma sintering

• Published in: Acta materialia Vol. 61; no. 8; pp. 2769 - 2782
• Main Authors: Wen, Haiming, Topping, Troy D., Isheim, Dieter, Seidman, David N., Lavernia, Enrique J.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.05.2013; Elsevier
• Subjects: Applied sciences; Atom-probe tomography; Exact sciences and technology; Mechanical properties; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; Microstructure; Nanostructured metals; Powder metallurgy. Composite materials; Production techniques; Sintered metals and alloys. Pseudo alloys. Cermets; Strengthening mechanism; Mechanical properties; Nanostructured metals; Microstructure; Atom-probe tomography; Strengthening mechanism; Zinc base alloys; Plasma; Aluminium base alloys; Nanostructure; Aluminium alloy; Powder metallurgy; Atom probe; Mechanism; Hardening; Spark discharge; Sintering; Strength

A bulk nanostructured alloy with the nominal composition Cu–30Zn–0.8Al wt.% (commercial designation brass 260) was fabricated by cryomilling of brass powders and subsequent spark plasma sintering (SPS) of the cryomilled powders, yielding a compressive yield strength of 950MPa, which is significantly...