Fabrication of CNTs–TiC–Ti2(Ni,Al)–Ni3Ti reinforced Ti-based composite coating by laser alloying processing
作者： S.S. Liu , X.H. Wang , M. Zhang , G.L. Zhao
DOI: 10.1016/J.JMRT.2019.09.067
关键词:
摘要: Abstract In-situ formation of TiC, Ni3Ti and Ti2(Ni,Al) with CNTs reinforced Ti-based composite coatings were fabricated by laser alloying processing. The effect specific energy on the microstructure, micro-hardness wear property studied. results showed that exhibited free from cracks pores. Cypress leaf-like flower-like TiC dendrites, as well block-like rod-like intermetallic compounds in-situ formed distributed uniformly in coating. With increasing energy, dendrites coarsened amount reduced. resistance first increased then decreased energy. When was controlled 4.167–5 kJ/cm2, high obtained. Wear 2.3–6.9 times substrate. behavior dominant mechanism adhesive wear, however, Ti6Al4V substrate serious abrasive plastic deformation.
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