Microstructural and mechanical behavior of bimodal reinforced Al-based composites produced by spark plasma sintering and FSP

Spark plasma sintering (SPS) is a powder metallurgy technique where uniaxial force and pulsed direct current are employed to perform metallic or ceramic particle consolidation in very short times. The high heating and cooling rates allow to prevent excessive grain growth favoring densification. Spar...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2018-02, Vol.94 (9-12), p.3903-3916
Main Authors: Sadeghi, B., Shamanian, M., Cavaliere, P., Ashrafizadeh, F., Sanayei, M., Szpunar, Jerzy A.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum oxide
CAE) and Design
Computer-Aided Engineering (CAD
Consolidation
Cooling rate
Densification
Direct current
Engineering
Grain growth
Industrial and Production Engineering
Material properties
Mechanical Engineering
Mechanical properties
Media Management
Metal matrix composites
Original Article
Plasma sintering
Powder metallurgy
Process parameters
Spark plasma sintering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Spark plasma sintering (SPS) is a powder metallurgy technique where uniaxial force and pulsed direct current are employed to perform metallic or ceramic particle consolidation in very short times. The high heating and cooling rates allow to prevent excessive grain growth favoring densification. Spark plasma sintering has been recognized, in the recent past, as a very useful method to produce metal matrix composites characterized by enhanced mechanical and wear properties. Obviously, the materials final properties are strongly related to the reinforcement types and percentages as well as to the processing parameters employed during synthesis. The present paper analyses the effect of microscopic and nanometric alumina particles, blended to pure aluminum in different combinations, on the final properties of metal matrix composites produced via SPS. The SPSed composites were friction stir processed (FSPed), and the processing forces and the heat input in the materials were analyzed. The microstructural and mechanical behavior of the processed materials are shown to be strongly dependent on the starting material properties and on the processing parameters employed during FSP.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-017-1144-x