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Explain objectives of annealing? Discuss the various annealing processes? Is spheroidising different from annealing? Illustrate.
A slow cooling rate from eutectoid temperature yields course pearlite - a mixture of comparatively coarse crystals of ferrite and cementite. Such a slow cooling is known as annealing. Here, sufficient time is available for carbon in the austenite to diffuse and redistribute itself to 0.02% in ferrite and 6.67% in cementite. During annealing, effective transformation temperature is low, where rate of growth is rapid compared to rate of nucleation. Hence, spheroidising is obviously different from annealing.
how can they used and what its side effects?
How does B-H hysteresis curve be understood in terms of domain growth and domain rotation? There are two possible ways to align a random domain structure by applying an electr
What are the physical propeties of S block ?
Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe
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How are formalin and trioxane related to methanol?
obtain the mole of substance in the following. 7.05g Br2
The frequency of yellow light having wavelength 600 nm is: (1) 5.0x10 14 Hz (2) 2.5 x 10 7 Hz (3) 5.0x 10 7 Hz
Distinguishing among enantiomers requires a technique that has a chiral attribute. (a) Boiling point does not distinguish among two enantiomers. (b) Optical rotation does ha
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