Jominy test

Jominy test

[′jäm·ə·nē ‚test]
(metallurgy)
A hardenability test in which a steel bar is heated to the desired austenitizing temperature and quench-hardened at one end and then measured for hardness along its length, beginning at the quenched end. Also known as Jominy end quench test.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The most efficient and reliable hardenability test is the Jominy test, where a standard size and shape ingot of steel is heated until transformed to 100% austenite and then rapidly cooled, starting from one end.