Residual Stress Measurement by Neutron Diffraction inside a Steel Bar Quenched after Induction Heating

Abstract

The residual stress of a quenched steel bar with induction heating was measured by neutron diffraction. The conventional X-ray sin²Ψmethod was also used and three dimensional stress condition was estimated from plane-stress data obtained by a progressive polishing technique. Good agreements were found between the results by the neutron and X-ray methods. Improvements of the neutron stress measurement are discussed.