Jominy test

Июль 31, 2022

Содержание

2. Jominy test (is used to measure the hardenability of a steel) Hardenability (ability of material to
4. Alloy vs Non-alloy Cooling end Martensite Properties Microstructural constituents
5. To get a 100% martensite ,it’s need to use Fast or moderate cooling rate. Only on
6. Measuring hardness Brinell hardness (Hard metall ball is pressed against material) Rockwell hardness (hard metal ball
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Jominy test
(is used to measure the
hardenability of a steel)
Hardenability

(ability of material to
subside into martensite)
Hardness
(is a measure of how resistant solid matter is to various kinds of permanent shape change when a compressive force is applied.)

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Alloy vs Non-alloy
Cooling end
Martensite
Properties
Microstructural
constituents

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To get a 100% martensite ,it’s need to use Fast or

moderate cooling rate.
Only on 2 line we get 100%
martensite.
Comparison of microstructural
constituents

Microstructural constituents

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Measuring hardness
Brinell hardness (Hard metall ball is pressed against material)
Rockwell hardness

(hard metal ball or diamond cone pressed against material)
Vickers Hardness (Diamond pyramid is pressed against material)