Optimization of Process Parameters in Spark Plasma Sintering Al6061 and Al2124 Aluminum Alloys

摘要：

In the present study, Al2124 and Al6061 alloys were consolidated through spark plasma sintering at 400,450 and 500 ℃ 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 ℃. Beyond 450 ℃, 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.

关键词： Spark plasma sintering Aluminum alloys Hardness Density Grain growth

作者: Abdullah Khalil Abbas Saeed Hakeem Nouari Saheb

作者单位: Department of Mechanical Engineering Center of Excellence in Nanotechnology King Fahd University of Petroleum & Minerals, Dhahran - 31261 Department of Mechanical Engineering Center of Excellence in Nanotechnology King Fahd University of

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)

会议地点: 广州

会议语种:英文

页码: 1517-1522

在线出版日期: 2011-11-18（万方平台首次上网日期，不代表论文的发表时间）