Synthesis of Al7075 Alloy/Al2O3 Composite and Corrosion Study

R. Devi; C. Raja; S. Sivaprakash; V. Anandakrishnan

doi:10.4028/www.scientific.net/AMR.984-985.541

Paper Titles

Electrodeposition of Nanostructured Ni Based Alloys/Composites – A Critical Analysis
p.514

Prediction of Best Combination of Process Parameters for Detonation Gun Coating Process through Taguchi Technique
p.520

Improvement of Stress Corrosion Cracking (SCC) Resistance of a 7150 Al-Zn-Mg-Cu Alloy by Retrogression and Reageing (RRA) Treatment
p.529

Effect of Hardness on the Wear Behavior of Hybrid Metal Matrix Composites
p.536

Synthesis of Al7075 Alloy/Al₂O₃ Composite and Corrosion Study
p.541

Worn Surface Analysis of Hybrid Metal Matrix Composite
p.546

Dry Sliding Wear Behaviour of Al 7075 T6 Coated by Plasma Spray Process
p.551

Evaluation of Corrosion Behaviour for Aluminium Alloy 7075 in 5% NaCl Solution under Slightly Varying Temperature
p.557

Influence of Sensor Positioning in Tool Condition Monitoring of Drilling Process through Vibration Analysis
p.564

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 984-985Synthesis of Al7075 Alloy/Al2O3 Composite and...

Synthesis of Al7075 Alloy/Al₂O₃ Composite and Corrosion Study

Abstract:

Al7075alloy and Al₂O₃ powders were synthesized via high-energy ball mill for 5 h. Al7075alloy powders were mixed with Al₂O₃ ranging from 5 to 15 vol. %, compacted by cold uniaxial compaction at 400 MPa. The green pellets were degassed at 350 oC for 30 min, and then sintered in the temperature of 600 oC under argon atmosphere for 120 min. It was shown that better density, vickers micro hardness and corrosion resistance were achieved up to 10 vol. % due to uniform distribution of Al₂O₃ particles throughout matrix. Beyond 10 vol. %, Al₂O₃ resulted in clustering, porosity and poor interfacial bonding and their properties.