(ZrB(2)+Al(2)O(3)+Al(3)Zr)(p)/Al-4Cu composite synthesized by magneto-chemical melt reaction

作者：Zhao Yutao^*; Zhang Songli; Chen Gang; Cheng Xiaonong; Dai Qixun

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2008, 487(1-2): 1-6.

DOI：10.1016/j.msea.2008.02.050

• in situ composites
• magneto-chemical
• Al-4Cu alloy
• mechanical properties

Al-4Cu matrix composites reinforced by ZrB(2), Al(2)O(3) and Al(3)Zr particulates are synthesized using a magneto-chemical melt reaction. Using an electro-magnetic assisted melt reaction results in a uniform distribution of in situ particles with no indication of clustering and an equivalent diameter in the range of 80 nm-2 mu m. Comparing to the Al-4Cu alloy, the mechanical properties, the wear weight loss and the wear resistance of the composites are significantly enhanced. In particular, the increases in sigma(uts) and sigma(y) for the as-prepared composites with a 15% particulate-volume-fraction (PVF) are up to 47.3% and 53.7%; the decrease in wear weight loss from 89.078 to 46.385 mg is obtained, and the wear weight resistance R(relat). reaches 2.0573.

• 出版日期2008-7-25
• 单位江苏大学