Feasibility of Thermal Strain Measurements during Quasi-Steady State Using Neutron Diffraction
Localized heating was imposed on a 6061-T6 aluminum alloy plate to cause thermal strains, and simultaneously interplanar spacing changes were measured using in-situ time-resolved neutron diffraction techniques. Two different methods were used: 1) direct real-time measurements of the transient behavior and 2) a series of measurements based on the quasi-steady state (QSS) principle. A comparison of the two results shows that the QSS method can represent the transient behavior under the current experimental conditions.
W. Reimers and S. Quander
W. Woo et al., "Feasibility of Thermal Strain Measurements during Quasi-Steady State Using Neutron Diffraction", Materials Science Forum, Vols. 524-525, pp. 387-392, 2006