Interface Microstructure and Deformation Behavior of an Al-Cu Dissimilar Metal Plate

2013 ◽  
Vol 51 (7) ◽  
pp. 535-545 ◽  
Author(s):  
Kwang-Seok Lee ◽  
Su-Eun Lee ◽  
Jung Su Kim ◽  
Min Jung Kim ◽  
Dong Hyun Bae ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
Metal Plate ◽  
Interface Microstructure ◽  
Dissimilar Metal

Plastic deformation behavior in laser bending of elastic pre-loaded metal plate

2016 ◽  
Vol 90 (9-12) ◽  
pp. 3397-3406 ◽  
Author(s):  
Lang Xu ◽  
Weidong Li ◽  
Xiufeng Wang ◽  
Min Wan ◽  
Menghua Jiang
Keyword(s):  
Plastic Deformation ◽  
Deformation Behavior ◽  
Metal Plate ◽  
Laser Bending ◽  
Plastic Deformation Behavior

SPH Analysis on Formation Manner of Wavy Joint Interface in Impact Welded Al/Cu Dissimilar Metal Plates

2014 ◽  
Vol 794-796 ◽  
pp. 383-388 ◽  
Author(s):  
Junto Nishiwaki ◽  
Yuya Sawa ◽  
Yohei Harada ◽  
Shinji Kumai
Keyword(s):  
Metal Plate ◽  
Wave Form ◽  
Joint Interface ◽  
Interface Formation ◽  
Direction Parallel ◽  
Dissimilar Metal ◽  
Metal Plates ◽  
Wavy Interface ◽  
The Impact ◽  
Metal Jet

The impact welding was performed for several kinds of metal plate couples. The joint interface exhibited a sinusoidal wave form when two metal plates with the same or similar density (e.g.Al/Al, Cu/Cu and Cu/Ni) were impact-welded by high-speed oblique collision. In contrast, as for dissimilar metal plate couples with large density difference such as Al/Cu, an asymmetric wavy interface was obtained. In order to make clear the reason for morphological difference, a computer simulation of the collision behavior was performed using SPH (Smooth Particle Hydrostatic) method. The simulation results revealed that the wave form was controlled by the interaction between the emitted metal jet and metal plate surfaces ahead of the collision point. For Al/Al and Cu/Ni, the emitted metal jet hit each surface alternatively and this resulted in symmetrical wavy interface formation. While, for Al/Cu, the metal jet was emitted to the direction parallel to the Cu plate, and the interaction took place between the metal jet and the Cu plate surface. The metal jet emission and wavy interface formation mechanism were also investigated.

scholarly journals Reducing Yield Asymmetry between Tension and Compression by Fabricating ZK60/WE43 Bimetal Composites

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 249
Author(s):  
Kangning Zhao ◽  
Dexing Xu ◽  
Xiao Song ◽  
Yingzhong Ma ◽  
Hongxiang Li ◽  
...  
Keyword(s):  
Deformation Mechanism ◽  
Deformation Behavior ◽  
Extrusion Direction ◽  
Stress Transfer ◽  
Prismatic Slip ◽  
Special Method ◽  
Interface Microstructure ◽  
Tension And Compression ◽  
Deformation Modes ◽  
Bimetal Composite

In this study ZK60/WE43 bimetal composite rods were manufactured by a special method of hot diffusion and co-extrusion. Interface microstructure, deformation mechanism, and yield asymmetry between tension and compression for the composite rods were systematically investigated. It was observed that the salient deformation mechanism of the ZK60 constituent was {10-12}<−1011> extension twinning in compression and prismatic slip in tension, and different deformation modes resulted in yield asymmetry between tension and compression. In contrast, the WE43 constituent tends to be more isotropic due to grain refinement, texture weakening, solid-solution and precipitation strengthening, which were deformed via basal slip, prismatic slip, and {10-12}<−1011> extension twinning in both tension and compression. Surprisingly, it was found that yield asymmetry between tension and compression for the ZK60/WE43 composite rods along the extrusion direction was effectively reduced with a compression-to-tension ratio of ~0.9. The strongly bonded interface acting as a stress transfer medium for the ZK60 sleeve and WE43 core exhibited the coordinated deformation behavior. This finding provides an effective method to decrease the yield asymmetry between tension and compression in the extruded magnesium alloys.

scholarly journals Analysis of Large Deformation Behavior of Inserted Metal Plate in Injection Molding

Seikei-Kakou ◽  
2013 ◽  
Vol 25 (8) ◽  
pp. 380-384
Author(s):  
Takamitsu Yamada ◽  
Ryo Nakano ◽  
Sayaka Okabe ◽  
Riho Takenaka
Keyword(s):  
Injection Molding ◽  
Large Deformation ◽  
Deformation Behavior ◽  
Metal Plate

Microscale groove effect on shear strength of epoxy-bonded dissimilar metal plate

2016 ◽  
Vol 30 (18) ◽  
pp. 2001-2012 ◽  
Author(s):  
M. A. Aripin ◽  
Z. Sajuri ◽  
S. Abdullah ◽  
M. Z. Omar ◽  
W. F. H. Zamri ◽  
...  
Keyword(s):  
Shear Strength ◽  
Metal Plate ◽  
Dissimilar Metal

Plastic deformation of θ ' in Al-4%Cu alloy

1978 ◽  
Vol 36 (1) ◽  
pp. 576-577
Author(s):  
Shrikant P. Bhat
Keyword(s):  
Deformation Behavior ◽  
Room Temperature ◽  
Electron Microscopic Observation ◽  
Bulk Alloy ◽  
Electron Microscopic ◽  
Cu Alloy ◽  
Cu Alloys ◽  
Orowan Mechanism ◽  
The Subject ◽  
Cyclic Straining

deformation behavior of Al-Cu alloys aged to contain θ ' has been the subject of many investigations (e.g., Ref. 1-5). Since θ ' is strong and hard, dislocations bypass θ ' plates (Orowan mechanism) at low strains. However, at high strains the partially coherent θ ' plates are probably sheared, although the mechanism is complex, depending on the form of deformation. Particularly, the cyclic straining of the bulk alloy is known to produce gross bends and twists of θ '. However, no detailed investigation of the deformation of θ ' has yet been reported; moreover, Calabrese and Laird interpreted the deformation of θ ' as largely being elastic.During an investigation of high temperature cyclic deformation, the detailed electron-microscopic observation revealed that, under reversed straining conditions, θ ' particles are severely distorted--bent and twisted depending on the local matrix constraint. A typical electronmicrograph, showing the twist is shown in Fig. 1. In order to establish whether the deformation is elastic or plastic, a sample from a specimen cycled at room temperature was heated inside the microscope and the results are presented in a series of micrographs (Fig. 2a-e).

Observation of secondary slip systems in tungsten bicrystals

1984 ◽  
Vol 42 ◽  
pp. 478-479
Author(s):  
J. R. Fekete ◽  
R. Gibala
Keyword(s):  
Stress Field ◽  
Grain Boundaries ◽  
Deformation Behavior ◽  
Stress Axis ◽  
Polycrystalline Materials ◽  
Slip Systems ◽  
Metallic Materials ◽  
Twist Boundary ◽  
Secondary Slip ◽  
Plane Normal

The deformation behavior of metallic materials is modified by the presence of grain boundaries. When polycrystalline materials are deformed, additional stresses over and above those externally imposed on the material are induced. These stresses result from the constraint of the grain boundaries on the deformation of incompatible grains. This incompatibility can be elastic or plastic in nature. One of the mechanisms by which these stresses can be relieved is the activation of secondary slip systems. Secondary slip systems have been shown to relieve elastic and plastic compatibility stresses. The deformation of tungsten bicrystals is interesting, due to the elastic isotropy of the material, which implies that the entire compatibility stress field will exist due to plastic incompatibility. The work described here shows TEM observations of the activation of secondary slip in tungsten bicrystals with a [110] twist boundary oriented with the plane normal parallel to the stress axis.

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