The Effect of In-flight Bulk Metallic Glass Particle Temperature on Impact Behavior and Crystallization

  • Kim, Soo-Ki (Conservation of cultural properties, Metal conservator, Yongin University) ;
  • Yoon, Sang-Hoon (Kinetic Spray Coating Labortary, Division of Materials Science & Engineering, College of Engineering, Hanyang University) ;
  • Lee, Chang-Hee (Kinetic Spray Coating Labortary, Division of Materials Science & Engineering, College of Engineering, Hanyang University)
  • Published : 2006.09.24

Abstract

NiTiZrSiSn bulk metallic glass powder was produced using inert gas atomization and then was sprayed onto a SS 41 mild steel substrate using the kinetic spraying process. Through this study, the effects of thermal energy of in-flight particle and crystallization degree by powder preheating temperature were evaluated. The deformation behavior of bulk metallic glass is very interesting and it is largely dependent on the temperature. The crystalline phase formation at impact interface was dependent on the in-flight particle temperature. In addition, variations in the impact behavior need to be considered at high strain rate and in-flight particle temperature.

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