In Situ Neutron Diffraction Characterization of Phases in Co-Re-Based Alloys at High Temperatures

• DOI: 10.12693/aphyspola.128.684
• Publication Date: 2015-11-30T11:11:58Z
• Authors: P. Strunz; D. Mukherji; R. Gilles; U. Gasser; P. Beran; G. Farkas; M. Hofmann; L. Karge; J. Rösler
• Keywords: 0103 physical sciences; 01 natural sciences

CoRe-based alloys strengthened by carbides are promising candidates for new high-temperature gas turbine applications.The high temperature microstructure and its stability of utmost importance, e.g.due to strengthening-phase selection.Neutron scattering, providing in situ information at temperatures, was extensively used the past CoRe research.The paper focuses on TaC alloy, particularly precipitates which were previously shown not dissolve up least 1300 • C. Small-angle neutron scattering shows that ner morphological variant most suitable strengthening coarsened even relatively low 1000 C.This coarsening is faster higher temperatures mean size exceeded Å (i.e. detection limit facility) after 4 h hold 1200