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The
Jominy end quench test is a test used to determine the hardenability of a
steel alloy. The procedure
for the test is to first heat a cylinder shape of the alloy to a very high
temperature in which austenite is formed throughout.
One end of the specimen is then subjected to a jet of cold water,
or water quenched, thus this end is cooled at the maximum rate.
The cooling process continues to flow through the length of the bar
like water flows through a pipe. Therefore,
the rate of cooling diminishes along the remaining length of the specimen.
After the specimen has cooled to room temperature, hardness
measurements can be made along the length of it.
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