Surface coatings, hardfacing,thermal spraying

Student at Pondicherry University
4 de Jan de 2018
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
Surface coatings, hardfacing,thermal spraying
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Surface coatings, hardfacing,thermal spraying

Notas do Editor

  1. How dilution can be controlled? Selecting the right welding procedure(particularly heat input). Choosing the right polarity(DC+;DC-;AC) Welding technique Welding position
  2. Parameters: Gun design, plasma gases, powder injection schemes, and material properties like size, distribution, melting point, morphology, and apparent density. Dis adv: Mechanical and adhesive instabilities of the coating-generation of amorphous calcium phosphate and bioactive calcium phosphate phase.
  3. The process is energy efficient because all of the input energy is used to melt the metal. Molten metal is atomized and propelled towards the substrate by a steam of air. Spray rates are driven primarily by operating current and vary as a function of both melting point and conductivity.
  4. In HVOF process the particles melt completely or only partially based on FLAME TEMPERATURE, PARTICLE DWELL TIME, MATERIAL MELTING POINT AND THEMAL CONDUCTIVITY. SUPERSONIC JET-results in much higher particle impact on substrate. which is a big benefit. Mach number>5(results in super sonic)