**4. Conclusion**

There are several methods of determining the residual stresses in a component. However, different techniques have their own advantages and limitations. Although, the destructive methods are much more accurate and reliable, they are very difficult to apply to the production component, where most of the problems of residual stresses exist. Due to damage of the component, it is not also possible to apply the destructive testing technique in most of the cases. On the other hand, non-destructive techniques are the most opted technique because it does not cause any damage to the component under examination. But they are less accurate and depend on several parameters which affect the repeatability of the results. Advances in computer software make results more accurate, reliable in non-destructive techniques also. Out of the common non-destructive technique, the MBN technique is most promising and can change the way of residual stress measurement which also helps in more reliable failure analysis and fitness for service determination studies.
