Illustrate objectives of heat treatment processes, Chemistry

Illustrate objectives of heat treatment processes

Heat treatment is normally adopted for the following:

(i) To refine grain structure

(ii) To improve machinability

(iii) To improve hardness and strength

(iv) To  relieve  internal  stresses  developed  during  cold  working,  casting,  welding, forging etc.

(v) To improve mechanical properties such as tensile strength, toughness and ductibility etc.

(vi) To increase wear, heat and corrosion resistance of materials.

(vii) To reduce corrosion rate.

(viii) To improve electrical and magnetic properties.

(ix) To soften metals for further (cold) working as in wire drawing or cold rolling.

(x) To homogenise structure; to remove coring or segregation.

(xi) To spheroidize tiny particles by diffusion.

 

Posted Date: 9/26/2013 1:01:08 AM | Location : United States







Related Discussions:- Illustrate objectives of heat treatment processes, Assignment Help, Ask Question on Illustrate objectives of heat treatment processes, Get Answer, Expert's Help, Illustrate objectives of heat treatment processes Discussions

Write discussion on Illustrate objectives of heat treatment processes
Your posts are moderated
Related Questions
what are protocols

Q. Illustrate about nuclear particle? In 1932 Rutherford with Chadwick demonstrated the existence of the neutron a nuclear particle having no charge but with nearly the same

Structure of proteins The structure of proteins is extremely complex. The basic structure of a protein considers to the number and sequence of the amino acids in its polypeptid

Q. Significant figures of the number of digits? Significant figures of the number of digits reported in a measurement signify how precise the measurement is. The further di

The total number of electrons that can be accommodated in all the orbitals having principal quantum number 2 and azimuthal quantum number 1 is: (1) 2        (2) 4

Q. What do you mean by Homologous Series? Ans. How can we adequately learn about carbon compounds when there are so many of them? The answer lies in grouping similar c

what is the defination of interstitial?


Q. Consider a single-phase system that is a gaseous mixture of N 2 , H 2 , and NH 3 . For each of the following cases, find the number of degrees of freedom and give an example of

Q. Briefly explain acid-base titration ? Ans. A valuable laboratory technique used by chemists is called an acid-base titration. A titration is a process in which the c