What are the objectives of heat treatment of metals, Chemistry

Assignment Help:

What are the objectives of heat treatment of metals?

Objectives of heat treatment-

Cause relief of internal stresses developed during cold working, welding, forging, casting etc. Harden and strengthen metals. Change grain size. Improve machinability. Soften metals for further working as in wire drawing or cold rolling. Improve toughness and ductility.

Increase, wear, heat and corrosion resistance of materials. Improve magnetic and electrical properties. Homogenise structure to remove coring or segregation. Spheroidize tiny particles, like those of Fe2C in steel, by diffusion.

Some of the precautions to be carried out when heating are - Metal/alloy has to be heated to a definite temperature. Holding at that sufficient temperature to allow change to occur. Tempering relieves residual stresses, improves ductility. Improve toughness, and reduces hardness increase % elongation.

 


Related Discussions:- What are the objectives of heat treatment of metals

Explain cip nomenclature, A monosaccharide A has a molecular weight of 150...

A monosaccharide A has a molecular weight of 150 Da. The two stereoisomers B and C that are both optically inactive form when A reacts with NaBH4.  Verify at all stereocenters i

..mixture, how we can mix solids by usig silica gel?

how we can mix solids by usig silica gel?

Linde''s method, why He and H cannot liqueified by linde''s method

why He and H cannot liqueified by linde''s method

Lanthanum and the lanthanides, LANTHANUM AND THE LANTHANIDES   The ...

LANTHANUM AND THE LANTHANIDES   The lanthanides are 14 components following lanthanum in the periodic table, and associated with the filling of the seven orbitals of the

Determine equilibrium constants for acid and base, Q. Determine Equilibrium...

Q. Determine Equilibrium Constants for Acid and base? Ans. The  pH scale  of acidity is a simple and convenient way to state the acidity of a solution. The

Rate of advancement, how do i calculate the rate of advancement of a week e...

how do i calculate the rate of advancement of a week electrolyte

Factor label method, If the density of a substance is 7.99 g/mL. What is th...

If the density of a substance is 7.99 g/mL. What is the mass of 3.60 mL of this substance?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd