Study of Pore Closure Mechanism of Aluminium Composite Processed through Powder Metallurgy Route

Ananthanarayanan Rajeshkannan; Bibhya Sharma

doi:10.4028/www.scientific.net/AMR.911.50

Paper Titles

Thermal Insulating Materials for Energy Storage Application
p.30

Surface Treatment of Rubber Toughened Polyester Filled Carbon Black and Kenaf Hybrid Composite
p.36

Preliminary Study of Oil Palm Decanter Cake Natural Polymer Composite (OPDC-NPC)
p.40

Characterization of Nafion/Silica Hybrid Composite Membranes for Redox Flow Battery (RFB) Applications
p.45

Study of Pore Closure Mechanism of Aluminium Composite Processed through Powder Metallurgy Route
p.50

Growth of Porous Alumina Layer and Cerium Sealing of Al7xxx/SiC Composite for Structural Lightweight Alloy Corrosion Resistant Application
p.55

Damage Size Classification of Natural Fibre Reinforced Composites Using Neural Network
p.60

Densification and Corrosion Studies of as-Sintered-Swaged Al Composite Preforms
p.67

Synthesized Hydroxyapatite Powder from Clamshell via Chemical Precipitation Method
p.72

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 911Study of Pore Closure Mechanism of Aluminium...

Study of Pore Closure Mechanism of Aluminium Composite Processed through Powder Metallurgy Route

Abstract:

Hot swaging experiments were carried out on as-sintered Al composite preforms in order to evaluate its pore closure characteristics. The effect of tungsten carbide and iron carbide in plain aluminium has been investigated under triaxial stress state condition. Cylindrical preforms with 0.5 aspect ratio and 88% fractional theoretical density have been produced for pure Al, Al-2WC and Al-2WC-4Fe₃C through classical powder metallurgy route. Then, the as-sintered preforms are hot swaged to various height strains to further enclose the residual porosities; thereby to enhance density and mechanical properties. It is observed that induced strain substantially helped to close the porosities; however this largely depends on the reinforcing carbide particles in the Al-matrix.