Jominy End

May 5th, 2015
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Hardenability is the ability of a steel to be hardened and form martensite during quenching. Hardenability indicates the depth of hardness which is obtained from quenching process, and it is very important to the components of machine especially tool steel. One of the methods to determine the hardenability of steels is Jominy End-Quench Test.

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Jominy EndTitle JOMINY END-QUENCH TESTObjectiveTo determine the hardenability of plain carbon steel.Theory Hardenability is the ability of a steel to be hardened and form martensite during quenching. Hardenability indicates the depth of hardness which is obtained from quenching process, and it is very important to the components of machine especially tool steel. One of the methods to determine the hardenability of steels is Jominy End-Quench Test.Hardening usually involves quenching where the steel is heated to austenite phase and fast cooling in the quench medium such as water, oil, salt solution, or air to produce microstructure of martensite. The martensite gives hard and brittle properties of steel.Usually, for heavy steel components, the hardness decreases at the core of component because the microstructure formed is ferrite and pearlite. While at the surface of th

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