Strain hardening, Other Engineering

Q. Define the concept of strain hardening.

Ans. Strain hardening or work hardening in metal occurs because of interaction between the this location and some of obstruction. During the plastic deformation in metals the required shear stress to produce slip is continuously increase with shear strain. This increase in shear stress in known as work hardening or strain hardening. The principle of work hardening can be explained by stress strain diagram.

         When loaded strain cases with stress and reaches P in the plastic range. At this stage when the specimen is unloaded the curve move along the forward downward path of PS, if the specimen is again reloaded the curve again rises from S and P and reaches the point Q and follows the curvature path.

         But if the specimen is loaded itially is not unloaded and process of increase in loading is continued, the stress strain curves take the path PN. The path PQR and PN clearly reveals that cold working has increased the yield strength, tensile strength and ultimate strength of metal or alloy. 

Posted Date: 8/3/2012 5:40:02 AM | Location : United States

Related Discussions:- Strain hardening, Assignment Help, Ask Question on Strain hardening, Get Answer, Expert's Help, Strain hardening Discussions

Write discussion on Strain hardening
Your posts are moderated
Related Questions
Question : What is the ISM band and what is particular about this frequency band? Name two wireless technologies that make use of the ISM frequency band. a) Explain the foll

Which range will you select when measuring for 240ohms resistor?

an iron ring with amean dia of 50 cm has an air gap of 1mm awinding of 200 turns if the permeability of the iron is 400 when a circuit of 1.25A flows through the coil find the flux

Non-discounted cash flow method, Payback period method In this method, time value of money is not considered. It takes into account the number of years required to recover the in

Means of escape from trains - railway inspections: The means of  escape from  trains is also considered  in  NFPA130.     Some  of  the considerations are: At least two eme

1 Scott Investors, Inc., is considering the purchase of a $447,000 computer with an economic life of five years. The computer will be fully depreciated over five years using the st

aieee ka course karne ke liye kya karna padega

Difference Between Fin and Swell          Swell : The unintentional bulges found on the casting surfaces are known as swells. Such enlargements on the casting surface are cau

Imaging Seekers  Although there are a wide variety of imaging sensors (cameras), the majority of modern aircraft systems are based on conventional TV camera technologies (al