Abstract
The deformation morphologies and mechanisms of (001) microtwinning in the stress induced martensite in the Ti-Ni-Nb alloy tensioned to different extents at its parent phase condition have been investigated using Conventional Transmission Electron Microscope (CTEM) and High Resolution Electron Microscope (HREM) observations. It had been found that (001) microtwinning plays an important role in both the coalescence and reorientation of martensite substructural bands. The corresponding micro-mechanisms were discussed.
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