期刊文献+

Role of Al_2O_3 fiber in eutectic Al-Si alloy composites

Role of Al_2O_3 fiber in eutectic Al-Si alloy composites
下载PDF
导出
摘要 The effects of Al 2O 3 fiber on wear characteristics of eutectic Al-Si alloy composites were studied using a pin-on-disk tester under dry sliding condition. The results show that the Al 2O 3 fiber can make matrix grain be fine, specially the eutectic Si be finer and prevent the plastic flow of matrix and prohibit the crack propagation in the wear layer, thereby it can remarkably improve the mechanical property and the wear resistance of the MMCs. Since Al 2O 3 fiber plays a role of certain framework in protecting the matrix against crash, it can eliminate the severe wear of MMCs with higher φ f of fiber from the beginning of test. At mild stage, when φ f is in the range of 8%~10%, the wear rates are the lowest. With increasing φ f of Al 2O 3 fiber, the wear mechanism of MMCs can be transformed from adhesive delamination to brittle breakaway. The effects of Al 2O 3 fiber on wear characteristics of eutectic Al-Si alloy composites were studied using a pin-on-disk tester under dry sliding condition. The results show that the Al 2O 3 fiber can make matrix grain be fine, specially the eutectic Si be finer and prevent the plastic flow of matrix and prohibit the crack propagation in the wear layer, thereby it can remarkably improve the mechanical property and the wear resistance of the MMCs. Since Al 2O 3 fiber plays a role of certain framework in protecting the matrix against crash, it can eliminate the severe wear of MMCs with higher φ f of fiber from the beginning of test. At mild stage, when φ f is in the range of 8%~10%, the wear rates are the lowest. With increasing φ f of Al 2O 3 fiber, the wear mechanism of MMCs can be transformed from adhesive delamination to brittle breakaway.
出处 《中国有色金属学会会刊:英文版》 CSCD 2002年第5期904-908,共5页 Transactions of Nonferrous Metals Society of China
关键词 共晶铝硅合金 氧化铝光纤 复合物 耐磨机械装置 Al 2O 3 fiber eutectic Al-Si alloy composite wear mechanism
  • 相关文献

参考文献14

  • 1Li X Y, Tandom K N. Microstructural characterization of mechanically mixed layer and wear debris in sliding wear of an Al alloy and an Al based composite[J]. Wear, 2000, 245: 148-161.
  • 2Iwai Y, Honda T, Miyajima, et al. Dry sliding wear behavior of Al2O3, fiber reinforced aluminum composites[J]. Composites Science and Technology, 2000, 60: 1781-1789.
  • 3Wang A G, Hutchings I M. Wear of alumina-fiber aluminum composites[J]. Mater Sci Technol, 1989, 5: 71-76.
  • 4Saka N, Szeto N K, Erturk T. Friction and wear of fiber-reinforced metal-matrix composites[J]. Wear, 1992, 157: 339-357.
  • 5Alahelisten A, Bergman F, Olsson M, et al. On the wear of aluminum and magnesium metal matrix composites[J]. Wear, 1993, 165: 221-226.
  • 6Deuis R L, Subramanian C, Yellup J M. Dry sliding wear of aluminum composites-a review[J]. Composites Science and Technology,1997,57: 415-435.
  • 7Arikan R, Murphy S. Anisotropic wear of planar-random metal matrix composites with zinc alloy matrix[J]. Wear, 1991, 143: 149-157.
  • 8Murphy S, Arikan R. A metallographic study of wear in planar-reinforced composites with an aluminum-zinc-copper alloy matrix[J]. Wear, 1992, 155: 105-115.
  • 9Moustafa S F. Wear and wear mechanisms of Al- 22% SiAl2O3 composite[J]. Wear, 1995, 185: 189-195.
  • 10Axen N, Alahelisten A, Jacobson S. Abrasive wear of alumina fiber-reinforced aluminum[J]. Wear, 1994, 173: 95-104.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部