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Frozen Gears - March/April 1993

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Archive > 1993 > March/April 1993 > Frozen Gears

The article "Frozen Gears" appeared in the March/April 1993 issue of Gear Technology.

Summary
Durability is the most important criterion used to define the quality of a gear. The freezing of metals has been acknowledged for almost thirty years as an effective method for increasing durability, or "wear life," and decreasing residual stress in tool steels. The recent field of deep cryogenics (below -300 degrees F) has brought us high temperature superconductors, the superconducting super collider, cryo-biology, and magnotehydrodynamic drive systems. It has also brought many additional durability benefits to metals.

Keywords
cryogenics, heat treating

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