Research of Micromechanism on Residual Stress in Aluminum Alloy Thick Plate
The research of micromechanism of stress evolvement is presented by analyzing fluctuation and change of surface stress in aluminum alloy thick plate with X-ray diffraction(XRD). From the micro view, a model of “rotation looping and shearing grain” was proposed to analyze and discuss the inhomogeneous distribution of micro-stress in location area, due to inhomogeneity of organization in material. The results present that the inhomogeneity of plastic deformation is direct cause lead to residual stress in plate, and complication of micro-stress distribution results from non-uniformity of organization.
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
K. Liao et al., "Research of Micromechanism on Residual Stress in Aluminum Alloy Thick Plate", Advanced Materials Research, Vols. 146-147, pp. 233-237, 2011