Define Latent Heat of Fusion and Evaporation
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Define Latent Heat of Fusion and Evaporation
Step by step
Solved in 2 steps with 3 images
- a) What is latent heat of vaporization? Latent heat of fusion? b) Assuming a solid material has a specific latent heat of fusion of 334 kJ/kg, what is the energy required to completely melt this material? Mass = 20 kg? c) If the material from part b melts at 200oC and starts at 20oC, what is the total amount of energy required to both bring it to its melting point and melt all of the material? (Cp = 18 kJ/kgK)Carburizing is the process where: -manganese contributes to the strengthening of the material -the part is quenched in a bath of oil to decrease distorion -carbon is added to the outer layer of a steel part through absorbtion and diffusion. -a part is packed in a salt bath to increase durabilityDraw the different types of grain configurations (by hand) and write their type of burning.
- 5 An inexperienced welder has welded a structural beam together and cooled it rapidly under water. This has caused the grain structure to become brittle. The beam will be used in the construction of a building. Which heat treatment method would be best to make the weld suitable for its purpose? (A) Heat the weld to 700 degrees Celsius and allow to cool slowly. (B) Heat to around 600-650 and hold for an hour then allow to cool slowly. (C) Heating to 300 degrees Celsius and let cool. (D) Reheat the weld to below the austenitic range and quench under water.Briefly define annealing.What is the name of the material that resists oxidation at elevated temperatures so air can be used as a plasma gas?
