IT 111 NonFerrous Metals Titanium

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IT 111 Non-Ferrous MetalsTitanium

• Lecture 5a
• Thomas E. Scott

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TITANIUM

• Titanium's physical qualities
• High strength
• Toughness
• Durability
• Low density
• Corrosion resistance
• Biological compatibility

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TITANIUM

• Discovered in the late 1500's
• Named for mythological giants, Titans
• 1940's, Aerospace and defense
• Today, aerospace, automobiles, prosthetics,
  buildings, and sporting equipment

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TITANIUM

• Titanium is a paradox.
• Supplies of pure titanium are rare
• More titanium than nickel, zinc, chromium, tin,
  lead, mercury, and manganese combined
• Titanium ores are highly dispersed

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TITANIUM

• 5 of titanium is used in its pure form
• 95 titanium dioxide (TiO2)
• Paper
• Paint
• Plastics
• White food coloring (including the coloring that
  is used to print the "m"s on MM candies).

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TITANIUM

• Similar weight to Aluminum
• Attributes
• Greater strength 85,000 psi
• Superior corrosion resistance
• Non-magnetic
• Weldable
• Blue sparks when machined
• Deficiencies
• Metal galls when drilling and tapping
• More expensive than aluminum (5 vs 1 per pound)

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TITANIUM

• Can be strengthened by alloying
• aluminum and vanadium
• Nonmagnetic
• Good heat transfer properties
• Corrosion resistance to acids
• Nontoxic and biocompatible
• Used in structural, chemical, petrochemical,
  marine and biomaterial applications.

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TITANIUM

• Most widely used titanium alloy, Ti-6Al-4V
• 45 of industrial applications
• Good workability and fabricability
• Aircraft gas turbine disks and blades
• Airframe structural components
• Prosthetic devices.

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TITANIUM

• Petrochemical industry
• Heat exchangers and reactors
• Automotive industry
• Connecting rods, valves, and suspension springs
• Sporting goods industry
• Bicycles, golf clubs, tennis rackets
• Wheelchairs

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TITANIUM

• Prosthetic devices
• Artificial heart pumps, pacemaker cases,
  heart-valve parts and load bearing bone or
  hip-joint replacements or bone splints
• Human body fluids are essentially chloride brines
  (acidic)
• TITANIUM IS TOTALLY IMMUNE

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TITANIUM

• Does not become magnetized
• Used in computer components
• Disk drives
• Microchips
• Other common applications
• shape memory eyeglass frames, watches and jewelry

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TITANIUM

• So although titanium deposits in the earth's
  crust are rare, titanium has abundant
  applications in industry and commercial
  enterprises. This metal makes white whiter,
  strengthens buildings, functions in prosthetics,
  and even increases the performance of sporting
  equipment to improve a game of golf or tennis.