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  • Case Study # 5 - Alloy F75
    demonstrated that F75 components meet the chemical specifications and exceed the mechanical property specifications of the ASTM standard, F75-01 Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075). Further, F75 properties
  • Multi-alloy medical part needing removal of surface contamination.
    This assembly was specified with two different alloys. After machining, the 303 cap is assembled onto the 13-8Mo tube,. and is captive after the tube is formed to the desired shape. After assembly, the parts were annealed. The customer needed to clean both parts satisfactorily for surgical use
  • Medical Device Link . Shape-Memory Alloys Offer Untapped Potential Engineers teach versatile materials how to work in the body.
    to pull fractured bone together or to correct spinal scoliosis. Surgical instruments can be contorted to designated shapes, then made to return to their initial form. A small electrical current might be used to induce tiny pumps and syringes to contract in reversible cycles. Perhaps the greatest
  • Engineering PM Parts Without Pricey Alloys
    shapes such as gears. The "green " parts then travel through a high-temperature, controlled atmosphere furnace where they are sintered -- metallurgically fused without melting -- to bond the particles together. This results in high-strength parts used in everything from cars and lawn mowers to surgical
  • Medical Device Link .
    Stainless-Steel Options for Medical Instrument Tubing Understanding the properties of different alloys is crucial to selecting the right material for a particular application. William Fender and Robert S. Brown As surgical procedures have become more complex and confined, the requirements
  • Medical Device Link . Superelastic Nitinol for Medical Devices
    , retrieval baskets, and surgical tools. Superelasticity refers to the unusual ability of certain metals to undergo large elastic deformation. Although the term is used synonymously with pseudoelasticity, we adhere to the definition that pseudoelastic alloys need only show nonlinear unloading
  • Medical Device Link .
    , dental implants, and surgical equipment. "Cobalt-chromium and titanium perform quite well, so surgeons and manufacturers feel very comfortable using them, " Medlin adds. When titanium is combined with nickel, the result is nitinol, a superelastic alloy that is biocompatible, corrosion resistant
  • Medical Device Link .
    the use of conventional shape-memory metals. It is also easy to weld and join, and it has a strain recovery of 3.5%. The material can be used for orthodontic devices, implantable surgical devices, and nonimplantable surgical devices. Because it is biocompatible and more elastic than regular

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