The martensite transformation in Ti-Cr binary alloys

Ericksen, R.H.; Taggart, R.; Polonis, D.H.

doi:10.1016/0001-6160(69)90114-x

Cited by 47 publications

(18 citation statements)

References 8 publications

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“…When the Cr content was increased to 10 wt.% or greater, the ␤ phase was completely retained with a bcc crystal structure. This finding is consistent with the early results obtained by Ericsen et al [22], who reported that the ␤ phase cannot be fully retained during quenching unless the Cr content exceeds about 6 at% (6.5 wt.%). Apparently, more than 10 wt.% Cr is needed to fully retain the ␤ phase in the Ti-Cr alloys.…”

Section: Phase and Structuresupporting

confidence: 93%

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Chiang

et al. 2009

Journal of Alloys and Compounds

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Section: Phase and Structuresupporting

confidence: 93%

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Chiang

et al. 2009

Journal of Alloys and Compounds

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“…When the Cr content increased to 10 wt% or higher, the retained ␤ was observed in the XRD patterns. This finding is consistent with the early result of Ericksen et al [29]. Ericksen et al reported that the ␤ phase cannot be fully retained during quenching unless the Cr content exceeds about 6.5 wt%.…”

Section: Phase Identificationsupporting

confidence: 92%

Structure and grindability of dental Ti–Cr alloys

Hsu

Chiang

et al. 2009

Journal of Alloys and Compounds

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“…In Ti-l%Cu, the plate boundaries are relatively curved and unclear, as seen in the electron micrograph of Photo. 2, which resemble the martensites of pure titanium (8). In Ti-2%Cu, similar structures with more definite boundaries were reported in a previous work (6), while the of Ti-Cu Martensite and its Aged Martensite 577…”

Section: Resultssupporting

confidence: 85%

“…Above this concentration (2%Cu or more) twinning predominates with no evidence of dislocation boundaries. The early transition can be explained on the grounds of purity level, bearing in mind that even commercial titanium, with no mode of inhomogeneous shear(14) because of its relatively high impurity level (8).…”

Section: Resultsmentioning

confidence: 99%

Morphology and Substructure of Ti–Cu Martensite and its Aged Martensite

1976

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The morphology and substructure of Ti-Cu martensites containing 1, 2 and 5.3 wt% Cu were investigated by means of optical microscopy and transmission electron microscopy. Surface relief studies prove that the transformation of three Ti-Cu alloys during water-quenching is essentially martensitic. Detailed examinations exhibit gradual transitions in (1) the morphology, (2) the mode of the inhomogeneous shear and (3) the mode of stress accommodation, with an increase in copper content. A typical massive structure appears only in Ti-1%Cu. Above this concentration (2%Cu or more) the plate structure predominates. A transition in the operating mode of the inhomogeneous shear, from slip to twinning, occurs with increasing copper content. It occurs at a somewhat higher M, temperature than in high purity binary titanium or zirconium alloys. A parallel transition is first observed in the mode of stress accommodation, from accommodation by movement of dislocation boundaries or by formation of dislocation tangles at low Cu, to accommodation by {1011} deformation twinning at higher Cu. A mixture of the two modes is also observed, proving a possible interchangeability of dislocation tangles and twins during the accommodation process.Clear distinction between types of accommodation twins (stress induced twins and direct impingement twins) is given. These are compared to the transformation twins.The rate of nucleation and growth of precipitates on lattice defects during the aging process of the martensitic structure depends on the type of defects. The phenomena observed can all be explained on the grounds of surface energy, strain energy and diffusion rate considerations. The importance of lattice defects as preferred nucleation sites decreases in the order of martensitic plate boundaries,

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The martensite transformation in Ti-Cr binary alloys

Cited by 47 publications

References 8 publications

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Structure and grindability of dental Ti–Cr alloys

Morphology and Substructure of Ti–Cu Martensite and its Aged Martensite

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The martensite transformation in Ti-Cr binary alloys

Cited by 47 publications

References 8 publications

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Mechanical properties and deformation behavior of cast binary Ti–Cr alloys

Structure and grindability of dental Ti–Cr alloys

Morphology and Substructure of Ti&ndash;Cu Martensite and its Aged Martensite

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Morphology and Substructure of Ti–Cu Martensite and its Aged Martensite