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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.
Define The Phase Rule and Phase Diagrams? We encountered the Gibbs phase rule and phase diagrams in connection with single-substance systems. The present chapter derives the fu
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Q. What do you mean by Dative Covalent Bonds?Dative Covalent Bonds Ans. Sometimes both electrons in the shared pair come from one atom. This type of bond is called a dativ
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I wish to convert beta hydroxy butyrate to either acetoacetate/ acetone or any other forms to be detected using some dyes. Kindly help me.
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why pcl3 is less polar than sicl4
Q. Place these types of light in order from largest to smallest wavelength. Blue light, x-rays, gamma rays, microwaves, green light? Largest wavelength microwaves green l
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Which have the same number of S electrons as the d - electrons in fe2+
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