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Orientation dependence of superelasticity in quenched high-nickel Ti-51.8Ni single crystals by E.E. Timofeeva; E.Yu. Panchenko; A.I. Tagiltsev; N.G. Larchenkova; A.B. Tokhmetova; Yu.I. Chumlyakov; M.N. Volochaev is a Materials Science article available to read on EtoBox.

What is Orientation dependence of superelasticity in quenched high-nickel Ti-51.8Ni single crystals about?

The orientation dependence of the functional and mechanical properties of quenched Ti-51.8at.%Ni single crystals, undergoing a strain-glass transition upon cooling/heating was investigated. It was found that a compressive stress above 800 MPa leads to the B2-B19′ martensitic transformation (MT), regardless of orientation. In the high-strength [001]-orientation, superelasticity (SE) was observed at 203–248 K, with a reversible strain of 2.3%. Degradation of SE at deforming stresses σ > 1000 MPa was associated with the formation of {113}B2 twins during the reverse MT. In the low-strength 1 1 1 - -orientation, the formation of stress-induced B19′-martensite occurred simultaneously with the plastic deformation of the B2-phase (due to the formation of reorientation bands and dislocation slip) and a reversible strain was not observed.

Who reads Orientation dependence of superelasticity in quenched high-nickel Ti-51.8Ni single crystals?

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Author
E.E. Timofeeva; E.Yu. Panchenko; A.I. Tagiltsev; N.G. Larchenkova; A.B. Tokhmetova; Yu.I. Chumlyakov; M.N. Volochaev
Published
2021
Language
EN
Field
Materials Science (Physical Sciences)

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