Microstructure and Its Formation Mechanism in the Interface of Ti/NiCr Explosive Cladding Bar

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11 Scopus Citations
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Author(s)

  • Bingfeng Wang
  • Xiaozhou Luo
  • Bin Wang
  • Shiteng Zhao
  • Fangyu Xie

Detail(s)

Original languageEnglish
Pages (from-to)1050-1058
Journal / PublicationJournal of Materials Engineering and Performance
Volume24
Issue number2
Publication statusPublished - 1 Feb 2015
Externally publishedYes

Abstract

Formation of the melting zone and the heat affected zone in the Ti/NiCr cladding interface determine the quality of bonding. The microstructures and mechanical properties of the melting zone and the heat affected zone in the interface of the Ti/NiCr explosive cladding bar are investigated by means of light microscopy, electron backscattered diffraction, and transmission electron microscopy/high-resolution transmission electron microscopy. The average bonding strength of the bar is 154.39 MPa. Intermetallics, nanograins, and amorphous phases coexist in the melting zone. The heat affected zone is characterized by low hardness, low dislocation density, bulky grains, and relatively scattered grains orientation distribution. Formation mechanisms of the melting zone and the heat affected zone are described.

Research Area(s)

  • composites, electron backscattered diffraction, explosive cladding, grain growth, interfaces

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