Harvey process

English

Etymology

Invented by Hayward A. Harvey, of New Jersey.

Proper noun

Harvey process

  1. A process for hardening the face of steel, involving the additional carburizing of the face of a piece of low-carbon steel by subjecting it to the action of carbon under long-continued pressure at a very high heat, and then to a violent chilling, as by a spray of cold water. This results in a thick surface of extreme hardness supported by material gradually decreasing in hardness to the unaltered soft steel at the back.
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