Transformation superplasticity of super α2 titanium aluminide
نویسندگان
چکیده
منابع مشابه
TRANSFORMATION SUPERPLASTICITY OF SUPER a2 TITANIUM ALUMINIDE
ÐTransformation superplasticity of an intermetallic Ti3Al-based alloy (Super a2) is demonstrated by thermal cycling about the a2/b transformation temperature range under a uniaxial tensile biasing stress. Failure strains up to 610% were recorded at a stress of 3 MPa, compared with 110% for deformation by isothermal creep at the same stress. The strain increment produced during each half-cycle i...
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Samples of commercial-purity titanium, with and without 10 vol.% TiC particulates. were thermally cycled about the allotropic transformation temperature of titanium. Thermal ratcheting was small for both unstressed materials. Upon application of an external uniaxial tensile stress, unreinforced titanium exhibited large strain increments, resulting from the biasing by the applied stress of the v...
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By thermally cycling through their transformation temperature range, coarse-grained polymorphic materials can be deformed superplastically, owing to the emergence of transformation mismatch plasticity (or transformation superplasticity) as a deformation mechanism. This mechanism is presently investigated under biaxial stress conditions during thermal cycling of unalloyed titanium, Ti-6Al-4V, an...
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ژورنال
عنوان ژورنال: Acta Materialia
سال: 1998
ISSN: 1359-6454
DOI: 10.1016/s1359-6454(98)00252-3