• Manjunath
• Dr. B. M. Rajprakash

This study has been undertaken to investigate the Residual stress distribution in a used 316L SS medical implant and used 316L SS medical implant. This study also briefly describes the theory and methods of residual stress measurement techniques. Residual stresses are determined from the X-ray diffraction data. The diffraction angle 2θ & FWHM (βtot) is calculated from Gaussian peak for all the peaks obtained, and then the lattice spacing, strain is calculated by plotting the graph between Sinθ(rad) vs βtot* Cosθ, we obtain the strain component from the slope (Cε) and the size component from the intercept (Kλ/L). Such a plot is known as a Williamson-Hall plot. Determine the composition of samples by EDAX experiment and calculate the young’s modulus. From Hooks low and strain component from the slope (Cε), calculate the residual stress.

Residual stresses, Gaussian peak, Size component, Strain component.

"STUDY ON RESIDUAL STRESS, STRAIN & GRAIN SIZE OF USED MEDICAL IMPLANT & NEW MEDICAL IMPLANTS, COMBINING XRD AND WILLIAM-HALL METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.870-881, June 2019, Available :http://www.jetir.org/papers/JETIR1907C82.pdf

"STUDY ON RESIDUAL STRESS, STRAIN & GRAIN SIZE OF USED MEDICAL IMPLANT & NEW MEDICAL IMPLANTS, COMBINING XRD AND WILLIAM-HALL METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp870-881, June 2019, Available at : http://www.jetir.org/papers/JETIR1907C82.pdf