Particle rotations during plastic deformation of 5086 aluminum alloy

Balasundaram, A.; Shan, Zhaohui; Gokhale, A.M.; Graham, Stephen M.; Horstemeyer, M.F.

doi:10.1016/s1044-5803(02)00280-2

Cited by 9 publications

(5 citation statements)

References 7 publications

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“…It must be mentioned that most of the damage evolution models implicitly assume that the particles remain stationary when the solid matrix is plastically deformed under an applied load and, therefore, the particle orientations do not change with the plastic strain. It has been reported that significant rotations of Fe-rich constituent particles occurred during the deformation of the ductile matrix of the Al-alloys [9,17]. The particle rotations have also been observed in some samples of this study, in particular in the torsion samples.…”

Section: Resultssupporting

confidence: 76%

“…The particles rotations in tension were very similar to that in the unstrained specimen since the tensile loading direction was parallel to the rolling direction and, therefore, significant particle rotations did not occur during uniaxial tensile deformation. Clearly, under the uniaxial compression along the rolling direction, the Fe-rich particles rotated and tended to align themselves along a direction that was perpendicular to the loading direction, which was the direction of induced tensile stress [9,17]. The extent of particle rotations in this study, however, appeared to be significantly less in the small strain levels.…”

Section: Resultscontrasting

confidence: 51%

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Particle cracking and rotation during plastic deformation of 7075 aluminum alloy

Lee

2009

Met. Mater. Int.

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The utility of a novel digital image processing technique for automatic detection and separation of cracked constituent particles was applied to quantitatively characterize the microstructural damage on Fe-rich intermetallic particles that were cracked in a 7075 Al-alloy. This cracking of the Fe-rich intermetallic particles was due to a function of strain under uniaxial tension, compression, and torsion. The comparison of the data on the strained samples revealed that at tensile strain, the number fraction of the cracked Fe-rich particles was significantly higher than those at torsion while the compression strains and the average volume of the cracked Fe-rich particles increased when the strain increased. The percentage-cracked particles had a linear relationship with all of the strains for all of the loading conditions. Significant rotations of Fe-rich intermetallic particles occurred during the deformation of this alloy under torsion. These rotations tended to align themselves along the direction of applied/induced tensile stretch, which in turn affected the progression of damage due to particle cracking.

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Section: Resultssupporting

confidence: 76%

Section: Resultscontrasting

confidence: 51%

Particle cracking and rotation during plastic deformation of 7075 aluminum alloy

Lee

2009

Met. Mater. Int.

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“…According to experimental observations, however, particles are not stationary but rather experience a significant rotation [31,32]. It is believed that the rotation of brittle phase particles can facilitate particle cracking [35,50]. It is known that during plastic deformation, particles rotate and align themselves along the loading direction [31].…”

Section: Role Of Precipitates In Deformationmentioning

confidence: 99%

Effect of Zr, V and Ti on hot compression behavior of the Al–Si cast alloy for powertrain applications

Shaha

Czerwiński

Kasprzak

et al. 2014

Journal of Alloys and Compounds

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“…According to experimental observations, however, particles are not stationary but rather experience a significant rotation [162,208]. It is believed that the rotation of brittle phase particles can facilitate particle cracking [76,220]. It is known that during plastic deformation, particles rotate and align themselves along the loading direction [208].…”

Section: Role Of Precipitates In Deformationmentioning

confidence: 99%

Development and Characterization of Cast Modified SI-CU-MG Alloys for Heat Resistant Power Train Applications

Shaha¹

2021

Preprint

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High temperature tensile, compression and low cycle fatigue tests were performed to assess the influence of micro-additions of Ti, V and Zr on the Al-7Si-1Cu-0.5Mg (wt.%) alloy in the as-cast and heat treated conditions. A combination of electron microscopy and high temperature X-ray diffraction was used to identify phases and temperature ranges of their thermal stability. The microstructure of the as-cast Al-7Si-1Cu-0.5Mg (wt.%) base and modified alloys consisted of α-Al, eutectic Si, and Cu-, Mg- and Fe-based phases Al2.1Cu, Al8.5Si2.4Cu, Al7.2Si8.3Cu2Mg6.9 and Al14Si7.1FeMg3.3. In addition, the micro-sized Ti/V/Zr-rich phases Al6.8Si1.4Ti, Al21.4Si4.1Ti3.5VZr3.9, Al6.7Si1.2TiZr1.8, Al2.8Si3.8V1.6Zr and Al5.1Si35.4Ti1.6Zr5.7Fe were identified in the modified alloys. During solution treatment, Cu- and Mg- based phases were completely dissolved, while the eutectic silicon, Fe- and Ti-V-Zr-rich intermetallics partially dissolved. The TEM analysis confirmed the presence of nano-sized precipitates of (AlSi)3(TiVZr) with D023 tetragonal crystal structure. The tensile tests of the alloy in the as-cast state showed that with increasing testing temperature from 25°C to 400°C the yield strength and tensile strength of the studied alloy decreased from 161 MPa to 84 MPa and from 261 MPa to 102 MPa, respectively. Accordingly, the T6 heat treated alloy modified with additions of a higher content of Ti-V-Zr achieved the highest tensile strength of 343 MPa over the base alloy and alloys modified with additions of Ti, Ti-Zr and lower contents of Ti-V-Zr. The fatigue life of the studied alloy in the T6 condition was substantially longer than those of the reference alloys A356 and the same Al-7Si-1Cu-0.5Mg base alloy with lower additions of V, Zr and Ti in the T6 condition. The fractography revealed tensile crack propagation through the eutectic Si and primary phases, exhibiting intergranular fracture along with some cleavage-like features of the plate-shaped Ti-V-Zr-rich intermetallics with a presence of fatigue striations on the latter, indicating their ductile nature. It is believed that the intermetallic precipitates containing Zr, Ti and V improve the fatigue life of the studied alloy in the T6 condition.

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Particle rotations during plastic deformation of 5086 aluminum alloy

Cited by 9 publications

References 7 publications

Particle cracking and rotation during plastic deformation of 7075 aluminum alloy

Particle cracking and rotation during plastic deformation of 7075 aluminum alloy

Effect of Zr, V and Ti on hot compression behavior of the Al–Si cast alloy for powertrain applications

Development and Characterization of Cast Modified SI-CU-MG Alloys for Heat Resistant Power Train Applications

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