A novel lattice correspondence of B19 → B19′ transformation in Ti-Ni-Cu shape memory alloy thin film

摘要

In this study, we found a novel lattice correspondence of the B19-B19′ transformation in a Ti-Ni-Cu thin film: (1 1 1)_B19′//(0 0 1)_B19, [0, 1, 1]_B19′//[1 0 0]_B19. Near the coarse precipitate and the grain boundaries, the B19′ martensite forms with the novel lattice correspondence to product the (1 1 1) type I twinning instead of the usual (0 0 1) compound twinning. Crystallographic analyses show that the novel lattice correspondence results from the local stress concentration.View full textDownload full textKeywordsTi-Ni-Cu alloys, shape memory alloys, thin films, martensitic transformationsRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2011.559912