Very High-Cycle Fatigue and High-Cycle Fatigue of Minor Boron-Modified Ti-6Al-4V Alloy

摘要

A refined fully lamellar microstructure with a prior beta grain size of similar to 100 mu m was obtained for a 0.1 mass percent (%) B-modified Ti-6Al-4V alloy. On the other hand, there were no morphological differences in equiaxed microstructures between the B-free and B-modified alloys; both had alpha grain sizes of about 8 mu m.