TY - GEN
T1 - Optimization of process parameters in spark plasma sintering Al6061 and Al2124 aluminum alloys
AU - Khalil, Abdullah
AU - Hakeem, Abbas Saeed
AU - Saheb, Nouari
PY - 2011
Y1 - 2011
N2 - In the present study, Al2124 and Al6061 alloys were consolidated through spark plasma sintering at 400, 450 and 500 0C using three different combinations of pressure and time (35 MPa -20 min, 40 MPa - 15 min and 45 MPa - 10 min). The microstructure, density and hardness of sintered samples were evaluated. Full densification and the highest hardness were obtained at 450 °C. Beyond 450 °C, there was only small change of hardness. Densification of specimens was less sensitive to the applied pressure. However, the lowest pressure of 35 MPa led to the highest hardness. At higher temperatures, the increase in pressure resulted in grain growth which decreased the hardness.
AB - In the present study, Al2124 and Al6061 alloys were consolidated through spark plasma sintering at 400, 450 and 500 0C using three different combinations of pressure and time (35 MPa -20 min, 40 MPa - 15 min and 45 MPa - 10 min). The microstructure, density and hardness of sintered samples were evaluated. Full densification and the highest hardness were obtained at 450 °C. Beyond 450 °C, there was only small change of hardness. Densification of specimens was less sensitive to the applied pressure. However, the lowest pressure of 35 MPa led to the highest hardness. At higher temperatures, the increase in pressure resulted in grain growth which decreased the hardness.
KW - Aluminum alloys
KW - Density
KW - Grain growth
KW - Hardness
KW - Spark plasma sintering
UR - http://www.scopus.com/inward/record.url?scp=80053114994&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.328-330.1517
DO - 10.4028/www.scientific.net/AMR.328-330.1517
M3 - Conference contribution
AN - SCOPUS:80053114994
SN - 9783037852385
T3 - Advanced Materials Research
SP - 1517
EP - 1522
BT - Mechatronics and Materials Processing I
ER -