Effect of Multi-directional Forging on the Evolution of Microstructural and Mechanical Properties of Lightweight Al-Cu-Li Alloy AA2050

Jagadeesh, C.; Nayaka, H. Shivananda; Ramesh, S.; Praveen, T.R.

doi:10.1007/s11665-023-07922-5

Cited by 7 publications

(8 citation statements)

References 52 publications

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“…Literature reports a considerable increase in the hardness and strength of SPD-processed materials, particularly Al [19][20][21][22]. Our previous study has demonstrated a substantial improvement in strength and hardness in AA2050 Al alloy due to MDF processing, owing to a combination of strain hardening and grain refinement [23]. Further, artificial aging of MDF processed samples resulted in a significant enhancement in strength and hardness due to precipitation hardening.…”

Section: Introductionmentioning

confidence: 74%

“…The present study is based upon our previous research findings, which focused on comprehending the microstructural evolution and mechanical behavior of AA2050 Al-Cu-Li alloy subjected to MDF processing and post-MDF aging [23]. Previous studies demonstrated improved properties such as strength and hardness and identified unexplored avenues as discussed earlier.…”

Section: Introductionmentioning

confidence: 94%

“…The current study evaluated the wear properties of third-generation Al-Cu-Li alloy AA2050 after subjecting it to various thermo-mechanical processes. The research from [23] briefly discussed the alloy's elemental composition. Figure 1(a) illustrates the steps followed in the present study.…”

Section: Materials and Microstructurementioning

confidence: 99%

“…After solution heat treatment (SHT) at 510 °C for 90 min, the alloy is quenched in water. SHT samples are further subjected to MDF processing up to 12 passes at 175 °C, briefly described elsewhere [23]. Several sets of SHT, 6-pass, and 12-pass MDF processed samples are artificially aged at 175 °C for 25 h.…”

Section: Materials and Microstructurementioning

confidence: 99%

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Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

Jagadeesh,

et al. 2024

Mater. Res. Express

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Al-Cu-Li alloys have drawn attention because of their decreased density, which is a result of the growing need for lightweight material systems in aerospace and aircraft applications. The Al-Cu-Li alloy, which has potential usage in aerospace and aviation structural components, is the subject of this study. The alloy was subjected to multi-directional forging (MDF) and post-MDF artificial aging. Reciprocating sliding wear tests were conducted to investigate the effects of these processes on wear properties under different load conditions. After MDF, a decrease in wear resistance was noticed, on the other hand, 12 pass MDF treated samples showed improved wear resistance upon aging treatment. Wear scars and counter ball surfaces were examined using scanning electron microscope (SEM) in order to understand the wear processes. The findings demonstrated that, at lower loads, adhesion and abrasion were the main wear processes; at greater loads, delamination, adhesion, and abrasion were clearly visible. Our study revealed that the MDF and its aging after processing have a substantial effect on the wear behavior of Al-Cu-Li alloy. This discovery has important implications for the development of lightweight materials that could be used in aerospace and aircraft applications.

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 94%

Section: Materials and Microstructurementioning

confidence: 99%

Section: Materials and Microstructurementioning

confidence: 99%

See 2 more Smart Citations

Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

Jagadeesh,

et al. 2024

Mater. Res. Express

Self Cite

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“…Literature suggests that SPD processing prior to aging of Al-Cu-Li alloys can significantly improve their mechanical properties. Our previous investigation has also examined the effect of MAF on mechanical and microstructural characteristics [37]. While a significant amount of literature is available on MAF processing of FCC materials, only few studies have reported on evolution of texture.…”

Section: Introductionmentioning

confidence: 99%

On the microstructure, texture and electrochemical properties of severely deformed and artificially aged lightweight AA2050 Al–Cu–Li alloy

Jagadeesh,

et al. 2024

Mater. Res. Express

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Lightweight 3rd generation Al-Cu-Li alloy AA2050 was severely deformed via Multi Axial Forging (MAF) at 170C followed by artificial aging at 150C. Effect of MAF and post MAF aging on microstructure and precipitation was investigated using transmission electron microscopy (TEM). Formation of deformation bands and large dislocation cells were evident on MAF processed samples. Post MAF peak aging resulted in the distribution of fine T1 precipitates in grain interiors with reduction in grain boundary precipitation. Bulk texture studies reveal the formation of strong Goss and S texture components upon MAF processing. Further, low temperature artificial aging doesn’t exhibit significant changes in texture characteristics, either in terms of texture intensities or texture components. Polarization studies showed that peak aged samples exhibited better corrosion resistance compared to un-aged samples. Overall, 12 pass MAF processed and peak aged samples showed higher corrosion resistance. Further, corrosion surface morphologies examination revealed the change in corrosion mechanisms with thermomechanical treatments. Improved corrosion resistance after MAF and peak aging widens the requirements in aerospace and aircraft applications for such engineering alloys

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Correlating corrosion modes with the microstructure of the 2XXX series alloys: A comparative approach

Klumpp,

Akbarzadeh,

de Sousa Araujo

et al. 2024

Surface & Interface Analysis

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In this study, the localized corrosion susceptibility of AA2050‐T84, AA2198‐T851, and AA2024‐T3 alloys was compared by immersion in three test solutions, specifically sodium chloride solution (3.5% NaCl), EXCO solution, according to ASTM G34‐18, and a solution for intergranular corrosion (IGC) test recommended by ASTM G110‐15 and via scanning vibrating electrode technique (SVET). The results showed higher susceptibility of AA2050‐T84 alloy to all types of corrosion tested compared to the other studied 2XXX series alloys. Corrosion penetration was deeper in the AA2050‐T84 due to its microstructural characteristics as a difference in the micrometric Cu‐Rich intermetallic particle distribution on the surface and related to the distribution of the T1 (Al2CuLi) phase.

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Effect of Multi-directional Forging on the Evolution of Microstructural and Mechanical Properties of Lightweight Al-Cu-Li Alloy AA2050

Cited by 7 publications

References 52 publications

Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

On the microstructure, texture and electrochemical properties of severely deformed and artificially aged lightweight AA2050 Al–Cu–Li alloy

Correlating corrosion modes with the microstructure of the 2XXX series alloys: A comparative approach

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