Soft particles assisted grain refinement and strengthening of an Al-Bi-Zn alloy subjected to ECAP

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 703; pp. 304 - 313
• Main Authors: Jia, Hailong, Bjørge, Ruben, Marthinsen, Knut, Mathiesen, Ragnvald H., Li, Yanjun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 04.08.2017; Elsevier BV
• Subjects: Alloys; Aluminium alloy; Aluminum; Aluminum base alloys; Bearing alloys; Deformation; ECAP; Equal channel angular pressing; Grain boundaries; Grain refinement; Lead free; Mechanical properties; Precipitation; Soft particle; Tensile properties; Yield strength; Zinc base alloys; Precipitation; Aluminium alloy; ECAP; Soft particle; Tensile properties

With the aim to improve the strength of potential Pb-free Al-Bi based bearing alloys, an Al-6Bi-8Zn alloy was subjected to equal channel angular pressing (ECAP). To reveal the roles played by the soft Bi particles, an Al-8Zn alloy is compared. After five passes of ECAP (5P), ultrafine grained (UFG)...