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Abstract
Small angle X-ray and neutron scattering provide a non-localised quantitative analysis of nanoscale precipitates in Ti-7Mo at.% and Gum metal, a Ti-Nb based alloy. The nucleation and coarsening kinetics are more rapid in the Ti-Nb alloy than the Ti-Mo alloy, presumably as Nb diffuses more rapidly than Mo in Ti. Therefore Mo-based
-Ti alloys are more stable during
ageing than Nb-based
-Ti alloys. To the authors’ knowledge, this represents the first publication quantifying
size, volume fraction and element partitioning in Gum metal.
Notes
No potential conflict of interest was reported by the authors.
Additional information
Funding
This work was supported from the European Union Seventh Framework Programme under the Marie Curie [grant agreement number 628643], the Japanese Society for the Promotion of Science (JSPS), The Great Britain Sasakawa Foundation, and EPSRC [grant number EP/H0004882/01]. This work made use of the J.B. Cohen X-ray Diffraction Facility at the Materials Research Center of Northwestern University supported by the National Science Foundation MRSEC program [DMR-1121262]. The authors’ thank Oliver Joris of Imperial College London and Timet for sample preparation, Shigeharu Ukai for the use of the Advanced High Temperature Laboratory at Hokkaido University, and HANARO for the SANS beam-time.