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Beryllium as a grain refiner in titanium alloys

2009; Elsevier BV; Volume: 481; Issue: 1-2 Linguagem: Inglês

10.1016/j.jallcom.2009.03.016

1873-4669

Michael Bermingham, Stuart D. McDonald, David H. StJohn, Matthew S. Dargusch,

Microstructure and mechanical properties

Solute plays an important role in grain refinement during the solidification of cast alloys and the growth restriction factor is a useful indicator for predicting the grain refining effectiveness of a particular solute. This work investigates beryllium as it is theoretically the most powerful grain refining solute in the titanium system and a relationship between grain size and composition is developed.