Discussion :a. Define by what is meant by metallographyb. What is the difference between metallography and metallurgy?c. Why must we avoid an increase in temperature in the specimens?d. Why must we rotate the specimen 90° each time betweenpolishing phases.e. How can we avoid the oxidation of the specimen's surface whiletreating it with etching solution?f. Explain how the etchant solution shows the grains and grainboundaryg. Why is the grain boundaries oxidization more sever and are the 1stto be oxidized than the grain surface themselves?

Note : Dear Student, As per Bartleby guidelines we are supposed to answer only first 3 sub parts…

Answered: a. Define by what is meant by…

a. Define by what is meant by metallography b. What is the difference between metallography and metallurgy? c. Why must we avoid an increase in temperature in the specimens?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Mechanical Drawings

A mechanical drawing is described as a technical drawing created by engineers following standard layout conventions, terminology, interpretation, and many other factors. It is also known as an engineering drawing.

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Discussion :
a. Define by what is meant by metallography
b. What is the difference between metallography and metallurgy?
c. Why must we avoid an increase in temperature in the specimens?
d. Why must we rotate the specimen 90° each time between
polishing phases.
e. How can we avoid the oxidation of the specimen's surface while
treating it with etching solution?
f. Explain how the etchant solution shows the grains and grain
boundary
g. Why is the grain boundaries oxidization more sever and are the 1st
to be oxidized than the grain surface themselves?

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