Temper rolling to control texture and earing in aluminium alloy AA 5050A

The development of crystallographic texture during the thermo-mechanical processing of aluminium sheet is known to result in the formation of pronounced plastic anisotropy, including the well-known earing phenomenon. In the present study we track the evolution of texture, microstructure and earing profiles in sheets of Al alloy AA 5050A during down-stream processing according to a process route resulting in temper H16 after cold rolling and temper H44 after lacquering. This process, which includes interannealing followed by a mild final pass of temper rolling, was designed for producing medium-strength sheet with low earing properties. Besides the experimental characterization of the evolution of microstructure, texture and resulting earing profiles along the process chain, means to optimize the processing by adapting the intermediate thickness are addressed.

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Modelling of Microstructure and Texture and the Resulting Properties during the Thermo-Mechanical Processing of Aluminium Sheets

Materials Science Forum ◽

10.4028/www.scientific.net/msf.519-521.1563 ◽

2006 ◽

Vol 519-521 ◽

pp. 1563-1568 ◽

Cited By ~ 4

Author(s):

Olaf Engler

Keyword(s):

Texture Evolution ◽

Mechanical Processing ◽

Process Chain ◽

Production Lines ◽

Thermomechanical Process ◽

Polycrystal Plasticity ◽

History Of ◽

Strain Paths ◽

Aluminium Sheets ◽

Evolution Of Microstructure

In order to predict the mechanical properties of Al sheet products, the evolution of microstructure and crystallographic texture along the process chain must be tracked. During the thermo-mechanical processing in commercial production lines the material experiences a complex history of temperature, time and strain paths, which results in alternating cycles of deformation and recrystallization with the associated changes in texture and microstructure. In the present paper the texture evolution of AA 3104 can body stock is modelled. In particular, the earing behaviour at final gauge is linked to the decisive steps of deformation and recrystallization along the thermomechanical process chain. For this purpose, the textures predicted by a comprehensive throughprocess model of the texture evolution during the thermo-mechanical production of Al sheet are input into a polycrystal-plasticity approach to simulate earing of the final gauge sheets.

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Experimental characterization of the solid phase chaotic dynamics in three-phase fluidization

International Journal of Multiphase Flow ◽

10.1016/s0301-9322(97)88294-8 ◽

1996 ◽

Vol 22 ◽

pp. 113

Author(s):

M Cassanello

Keyword(s):

Chaotic Dynamics ◽

Solid Phase ◽

Experimental Characterization ◽

Three Phase

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Experimental characterization of a laminar diffusion flame in micro-gravity

Journal de Chimie Physique ◽

10.1051/jcp:1999190 ◽

1999 ◽

Vol 96 (6) ◽

pp. 1022-1030 ◽

Cited By ~ 3

Author(s):

T. Vietoris ◽

P. Joulain ◽

J. L. Torero

Keyword(s):

Diffusion Flame ◽

Experimental Characterization ◽

Laminar Diffusion Flame ◽

Laminar Diffusion ◽

Micro Gravity

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Experimental Characterization of the Reliability of 3-Terminal Dual-Damascene Copper Interconnect Trees

MRS Proceedings ◽

10.1557/proc-716-b8.13 ◽

2002 ◽

Vol 716 ◽

Cited By ~ 4

Author(s):

C. L. Gan ◽

C. V. Thompson ◽

K. L. Pey ◽

W. K. Choi ◽

F. Wei ◽

...

Keyword(s):

Stress Conditions ◽

Experimental Characterization ◽

Contact Lines ◽

Tree Structures ◽

Similar Test ◽

Dual Damascene ◽

Copper Interconnect ◽

Test Conditions

AbstractElectromigration experiments have been carried out on simple Cu dual-damascene interconnect tree structures consisting of straight via-to-via (or contact-to-contact) lines with an extra via in the middle of the line. As with Al-based interconnects, the reliability of a segment in this tree strongly depends on the stress conditions of the connected segment. Beyond this, there are important differences in the results obtained under similar test conditions for Al-based and Cu-based interconnect trees. These differences are thought to be associated with variations in the architectural schemes of the two metallizations. The absence of a conducting electromigrationresistant overlayer in Cu technology, and the possibility of liner rupture at stressed vias lead to significant differences in tree reliabilities in Cu compared to Al.

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EXPERIMENTAL CHARACTERIZATION OF VVER-440 REACTOR CONTAINMENT TYPE SPRAY NOZZLE

Atomization and Sprays ◽

10.1615/atomizspr.2015011801 ◽

2016 ◽

Vol 26 (3) ◽

pp. 235-255 ◽

Cited By ~ 1

Author(s):

Jeanne Malet ◽

Z. Parduba

Keyword(s):

Spray Nozzle ◽

Experimental Characterization

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Experimental Characterization of Mechanical Behavior of Cord-Rubber Composites

Tire Science and Technology ◽

10.2346/1.2150974 ◽

1982 ◽

Vol 10 (1) ◽

pp. 37-54 ◽

Cited By ~ 11

Author(s):

M. Kumar ◽

C. W. Bert

Keyword(s):

Response Characteristic ◽

Cord Compression ◽

Complete Characterization ◽

Strain Response ◽

Strain Gages ◽

Experimental Characterization ◽

Rubber Composites ◽

Stress Strain ◽

Strain Data

Abstract Unidirectional cord-rubber specimens in the form of tensile coupons and sandwich beams were used. Using specimens with the cords oriented at 0°, 45°, and 90° to the loading direction and appropriate data reduction, we were able to obtain complete characterization for the in-plane stress-strain response of single-ply, unidirectional cord-rubber composites. All strains were measured by means of liquid mercury strain gages, for which the nonlinear strain response characteristic was obtained by calibration. Stress-strain data were obtained for the cases of both cord tension and cord compression. Materials investigated were aramid-rubber, polyester-rubber, and steel-rubber.

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