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. einsog Nirw b9zU

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. einsog Nirw b9zU

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

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.

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