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Which portion of the graph corresponds to the release of the heat of vaporization?

The graph of the cooling curve with respect to phase changes is as follows: Therefore, for the release of the heat of vaporization, we expect a phase change with the higher energy. Also, vaporization is the phase change from liquid to gas as indicated in Region 2 of the diagram above. Therefore, the answer is Region 2.

How does this heating curve illustrate that the heat of vaporization?

How does this heating curve illustrate that the heat of vaporization is greater than the heat of fusion? the change of the heat of vaporization is higher than that of the heat of fusion. segment BC is shorter that DE because BC is melting while DE is evaporating.

What are the applications of medium temperature tempering?

Explanation: Medium temperature tempering is applied on materials like spring steels and die steels. Likewise, high-temperature tempering is used on structural steels.

Which quenching medium has highest cooling rate?

carbon steels

What type of oil is used for quenching?

The two most common food grade oils used in this process are peanut and canola oil. Both of these oils have high flash points which is good for the quenching process. You will need to preheat these oils to slightly higher temperatures when compared to commercial quenching oils (120 – 130 degrees Fahrenheit).

Can you use motor oil to quench steel?

1) Motor Oils Motor oils are a common type of quenching oil used in both blacksmithing and bladesmithing applications. New and used motor oils can be used for quenching and are both widely available. New motor oil is typically cheaper to use than commercial quenching oils.

How do you harden steel with motor oil?

One way to do this is to make the steel red-hot, then plunge it into motor oil. The carbon in the motor oil bonds with the top layer of red-hot steel molecules and forms a tough outer covering on the steel. One last step is necessary, however, before your hardened steel is ready to work with.

How much does it cost to heat treat a knife?

You can send blades out for heat treating at $10 or $15 per blade for perfect results, and avoid buying the equipment.

How do you harden a blade?

Hardening is a way of making the knife steel harder. By first heating the knife steel to between 1050 and 1090°C (1922 and 1994°F) and then quickly cooling (quenching) it, the knife steel will become much harder, but also more brittle.