Cylindrical bars of the advanced nickel based superalloy RR1000 were subjected to swaging to induce approximately 30% cold work. Grain size analysis demonstrated a distinct modification to the microstructure whilst electron back scattered diffraction (EBSD) measurements confirmed the evolution of a relatively strong <111> texture parallel with the longitudinal bar axis. Intragranular strain damage was identified. The effects of the swaging on bulk mechanical properties are illustrated across a range of test temperatures.

 

Martin R. Bache ¹,James O’Hanlon ¹,Philip J. Withers ², Daniel J. Child ³ andMark C. Hardy ³

¹ Institute of Structural Materials, Swansea University, Bay Campus, Fabian Way, Swansea SA1 8EN, UK
² School of Materials, University of Manchester, Oxford Rd, Manchester M13 9PL, UK³ Rolls-Royce plc, P.O. Box 31, Derby DE24 8BJ, UK

Metals 2016, 6(3), 54; doi:10.3390/met6030054