TY - JOUR A1 - Darowski, N. A1 - Zizak, I. A1 - Schumacher, G. A1 - Klingelhöffer, Hellmuth A1 - Chen, W. A1 - Neumann, W. T1 - Temperature dependence of x-ray intensity profile FWHM of the gamma' phase in the creep-deformed single crystal superalloy SC16 JF - Journal of physics D N2 - High-resolution diffraction using synchrotron x-ray radiation was applied to study γ´ precipitates with an L12 superlattice crystal structure in the single crystal superalloy SC16 after creep deformation at 1223 K with a creep strain of ±0.5% for tensile and compressive loads, respectively. The measurements of full width at half maximum (FWHM) of 001 and 100 γ´ superlattice reflections were performed at various temperatures from ambient temperature to 1173 K in vacuum. The experimental results revealed that the FWHM of both reflections decrease with increasing temperature. It is well-known that changes in particle size and lattice distortion in materials could lead to a variation of FWHM. The observed behaviour is discussed in the light of both the above-mentioned aspects. The decrease in the peak width is mainly attributed to the temperature dependence of the internal strain state. KW - Creep deformation KW - Synchrotron x-ray radiation PY - 2005 DO - https://doi.org/10.1088/0022-3727/38/10A/038 SN - 0022-3727 SN - 1361-6463 VL - 38 IS - 10A SP - A200 EP - A203 PB - IOP Publ. CY - Bristol AN - OPUS4-11967 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -