Microstructural Evolution in High Purity Titanium Sheet Subjected to Continuous Cyclic Bending and Subsequent Temperature Gradient Annealing

Residual Ductility and Microstructural Evolution in Continuous-Bending-under-Tension of AA-6022-T4

A ubiquitous experiment to characterize the formability of sheet metal is the simple tension test. Past research has shown that if the material is repeatedly bent and unbent during this test (i.e., Continuous-Bending-under-Tension, CBT), the percent elongation at failure can significantly increase. In this paper, this phenomenon is evaluated in detail for AA-6022-T4 sheets using a custom-built ...

Crystallographic Orientation Distribution Control by Means of Continuous Cyclic Bending in a Pure Aluminum Sheet

Continuous cyclic bending (CCB) has been proposed as a useful straining technique to produce the high strain on the surface layers and the lower strain in the central layer of the sheet. A pure aluminum sheet is worked by the CCB using the ‘‘Roll traveling device’’ and ‘‘Roll driven machine’’. It is found that a sharp Cube orientation is formed by the CCB and subsequent annealing in the pure al...

Cyclic deformation behavior of high-purity titanium single crystals: Part II. Microstructure and mechanism

Spreading of Plastic Zones in Functionally Graded Spherical Tanks Subjected to Internal Pressure and Temperature Gradient Combinations

Thermo-Elasto-Plastic analyses of thick-walled spherical tanks made of functionally graded materials are investigated analytically. These tanks are subjected to positive or negative temperature gradient and internal pressure loadings separately or simultaneously. The power law modeling has been used for through-the-thickness variation of mechanical properties. von Mises yield criterion and Elas...

Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing

An influence of high temperature annealing process (before crystallization) on the atomic structure of two different as-prepared ribbon Cu–Zr–Ti metallic glasses (Cu60Zr20Ti20 and Cu55Zr16Ti29, at. %) was experimentally studied by means of differential scanning calorimetry and in situ hard X-ray diffraction. Results of our experiments prove different atomic structure and behaviour of the glasse...