Effect of Zn on microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr alloy by powder metallurgy

摘要：

　　In this paper,full-density Al-Zn-Mg-Cu-Zr powder metallurgy(P/M) alloy is prepared by hot-press sintering in vacuum at 600℃.Experiments are conducted to evaluate the effects of Zn additive in the range of 7.2-8.4 wt.% on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr alloys.X-ray diffraction(XRD),scanning electron microstructure(SEM) and electron probe micro-analyzer (EPMA),and mechanical properties such as tensile strength are measured.The porosity decreases gradually with increasing of Zn and it achieves 0.01% with a density of 2.95 g/cm3 at 8.4% Zn.The tensile strength reaches the maximal value of 436 MPa at 8.4% Zn.

关键词： Al-Zn-Mg-Cu-Zr alloy Hot-press sintering P/M Microsturcture Mechanical properties

作者: Chuandong Wu Chengzhang Li Pan Fang Guoqiang Luo Qiang Shen

作者单位: State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Tec Material Technology Institute of CVTC, Dongfeng Motor CO.,LTD, Wuhan 430056, Hubei, China

会议类型: 国际会议

会议名称: 2nd International Conference on Polymer Composities and Polymer Testing (2013第二届高分子复合材料与高分子测试国际会议暨先进工业技术与方案国际会议)(ISPCPT2013)

会议地点: 太原

会议语种:英文

页码: 219-222

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）