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ISSN: 2690-5779

Journal of Mining and Mechanical Engineering

Research ArticleOpen Access

Effect of Annealing Process on Microstructure of SiC-Mg Mixture Powder Volume 1 - Issue 2

Jingkun Li1, Xueping Ren1*, Yanling Zhang2,3,4 and Hongliang Hou2,3,4

  • 1School of Materials Science and Engineering, University of Science and Technology Beijing, China
  • 2AVIC Manufacturing Technology Institute, China
  • 3Aeronautical Key Laboratory for Plastic Forming Technology, China
  • 4Beijing Key Laboratory of Digital Forming Technology and Equipment, China

Received: November 12, 2019   Published: November 27, 2019

Corresponding author: Xueping Ren, School of Materials Science and Engineering, University of Science and Technology Beijing, China


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SiC particles with 8wt.% magnesium alloy powders as additives were mixed followed by annealing at 280 and 400 ℃ for 1 and 4 h. The particle size, phase condition, morphology and compositions distribution were analyzed using laser diffraction analyzer, X-ray diffraction (XRD), scanning electron microscopy (SEM). It was found that particles mixed homogeneously before annealing. Annealing processes have a positive effect on the decrease of magnesium alloy particle size. It has almost no effect on magnesium alloy particle size with increasing the annealing duration at 280 ℃. However, the diameter of magnesium particle decreased obviously with increasing the annealing duration at 400 ℃. Magnesium alloy particles annealed at 400 ℃ is smaller than that of the 280 ℃ ones under the same annealing duration. Si component was observed in powder annealed at both temperatures. Grain size of SiC was reduced and microstrain was improved with increase of annealing temperature and duration.

Keywords: Powder technology; particles; annealing process; microstructure

Abstract| Introduction| Materials and Methods| Results and discussion| Conclusions| References|