Microstructure and Mechanical Properties of Nano-ZrO2 and Nano-SiO2 Particulate Reinforced AZ31-Mg Based Composites Fabricated by Friction Stir Processing

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • C. I. Chang
  • Y. N. Wang
  • H. R. Pei
  • C. J. Lee
  • X. H. Du

Detail(s)

Original languageEnglish
Pages (from-to)114-119
Journal / PublicationKey Engineering Materials
Volume351
Online published15 Oct 2007
Publication statusPublished - 2007
Externally publishedYes

Conference

TitleThe 5th China Cross-strait Conference on Composite Materials
LocationShanghai Jiao Tong University
PlaceChina
CityShanghai
Period22 - 26 October 2006

Abstract

Friction stir processing (FSP) has been applied to fabricate 10~20 vol% nano-sized ZrO2 and 5~10 vol% nano-sized SiO2 particles into an Mg-AZ31 alloy to form bulk composites under the FSP parameters of advancing speed of 800 rpm and pin rotation of 45 min/min. The microstructures and mechanical properties of the resulting composites were investigated. The clustering size of nano-ZrO2 and nano-SiO2 particles, measuring average ∼200 nm was relatively uniformly dispersed, and the average grain size of the both Mg alloy of the composites varied within 1.0~2.0 μm after four FSP passes. No evident interfacial product between Zr02 particles and Mg matrix was found during the FSP mixing in AZ31-Mg/ZrO2. However, significant chemical reactions at the AZ31-Mg/SiO2 interface occurred to form the Mg2Si phase. The mechanical responses of the nano-composites in terms of hardness and tensile properties are examined and compared.

Research Area(s)

  • Composite, Friction stir processing, Magnesium alloy, Nano-sized particles

Citation Format(s)

Microstructure and Mechanical Properties of Nano-ZrO2 and Nano-SiO2 Particulate Reinforced AZ31-Mg Based Composites Fabricated by Friction Stir Processing. / Chang, C. I.; Wang, Y. N.; Pei, H. R.; Lee, C. J.; Du, X. H.; Huang, J. C.

In: Key Engineering Materials, Vol. 351, 2007, p. 114-119.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review