Hot Workability Characteristics and Optimization of Processing Parameters of 7475 Aluminum Alloy Using 3D Processing Map

Liu, Yang; Wang, Xing; Zhu, Dibin; Chen, Deshan; Wang, Qinwei; Li, Xiaoxuan; Sun, Tianyou

doi:10.1007/s11665-020-04629-9

Cited by 5 publications

(4 citation statements)

References 42 publications

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“…Calculating the efficiency of power dissipation during deformation is a crucial step in forming the processing map. By employing this method, the optimal deformation regimes have been successfully determined for numerous aluminum alloys [49][50][51][52][53][54][55][56][57][58][59]. Detailed methodologies for creating HPMs have been described in previous investigations [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: Hot Deformation Behaviormentioning

confidence: 99%

“…By employing this method, the optimal deformation regimes have been successfully determined for numerous aluminum alloys [49][50][51][52][53][54][55][56][57][58][59]. Detailed methodologies for creating HPMs have been described in previous investigations [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64]. The power dissipation efficiency η was calculated using the equation [50]:…”

Section: Hot Deformation Behaviormentioning

confidence: 99%

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Comprehensive Analysis of Microstructure and Hot Deformation Behavior of Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si Alloy

Amer,

Glavatskikh,

Barkov

et al. 2023

Metals

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Low sensitivity to hot cracking is very important not only for casting but also for ingots of wrought alloys. Doping of Al-Cu-(Mg) alloys by eutectic forming elements provides an increasing resistance to hot cracking susceptibility, but it also leads to a decrease in plasticity. The quasi-binary alloys based on an Al-Cu-REM system with an atomic ratio of Cu/REM = 4 have a high solidus temperature, narrow solidification range and fine microstructure. The detailed investigation of microstructure, precipitation and hot deformation behavior, and mechanical properties of novel Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si alloy was performed in this study. The fine Al8Cu4Y, needle-shaped Al11Cu2Y2Si2, compact primary (Al,Ti)84Cu6.4Y4.3Cr5.3 and Q (Al8Cu2Mg8Si6) phases were identified in the as-cast microstructure. Near-spherical coarse Al3(Zr,Y) and fine Al45Cr7 precipitates with a size of 60 nm and 10 nm were formed after 3 h of solution treatment at 580 °C. S′(Al2CuMg) precipitates with an average diameter of 140 nm, thickness of 6 nm and calculated volume fraction of 0.033 strengthened 36 HV during aging at 210 °C for 3 h. Three-dimensional hot processing maps demonstrated an excellent and stable deformation behavior at 440–540 °C and strain rates of 0.01–10 s−1. The rolled sheets had a good combination of yield strength (313 MPa) and plasticity (10.8%) in the recrystallized at 580 °C, with water quenched and aged at 210 °C for a 3 h state. The main calculated effect in the yield strength was contributed by Al45Cr7 precipitates.

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Section: Hot Deformation Behaviormentioning

confidence: 99%

Section: Hot Deformation Behaviormentioning

confidence: 99%

Comprehensive Analysis of Microstructure and Hot Deformation Behavior of Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si Alloy

Amer,

Glavatskikh,

Barkov

et al. 2023

Metals

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“…The value of both parameters (𝜎, 𝜀 ) is used for the plots of ln [sinh(ασ)]-ln𝜀 and ln [sinh(ασ)]-1000/T (Figure 4) by linear regression processing according to Equations ( 7) and (8). By using the linear fitting method, the average values of n and b are calculated to b 7.70001 and 2.534, respectively.…”

Section: Development Of Constitutive Equationmentioning

confidence: 99%

“…Hot extrusion/rolling is the main processing technique used for zinc-based alloys. However, the thermal deformation behavior of the alloys can be affected by several factors [ 6 , 7 ], including temperature, strain rates, and strain [ 8 ]. Thus, it is difficult to achieve the parameter specification of zinc-based alloys [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Thermal Deformation Behavior and Dynamic Softening Mechanisms of Zn-2.0Cu-0.15Ti Alloy: An Investigation of Hot Processing Conditions and Flow Stress Behavior

Xie

Kuang

et al. 2023

Materials

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Through isothermal hot compression experiments at various strain rates and temperatures, the thermal deformation behavior of Zn-2.0Cu-0.15Ti alloy is investigated. The Arrhenius-type model is utilized to forecast flow stress behavior. Results show that the Arrhenius-type model accurately reflects the flow behavior in the entire processing region. The dynamic material model (DMM) reveals that the optimal processing region for the hot processing of Zn-2.0Cu-0.15Ti alloy has a maximum efficiency of about 35%, in the temperatures range (493–543 K) and a strain rate range (0.01–0.1 s−1). Microstructure analysis demonstrates that the primary dynamic softening mechanism of Zn-2.0Cu-0.15Ti alloy after hot compression is significantly influenced by temperature and strain rate. At low temperature (423 K) and low strain rate (0.1 s−1), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s−1, the primary mechanism changes to continuous dynamic recrystallization (CDRX). Discontinuous dynamic recrystallization (DDRX) occurs when Zn-2.0Cu-0.15Ti alloy is deformed under the conditions of 523 K/0.1 s−1, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s−1.

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Microstructure evolution and mechanical responses of Al–Zn–Mg–Cu alloys during hot deformation process

2021

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Hot Workability Characteristics and Optimization of Processing Parameters of 7475 Aluminum Alloy Using 3D Processing Map

Cited by 5 publications

References 42 publications

Comprehensive Analysis of Microstructure and Hot Deformation Behavior of Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si Alloy

Comprehensive Analysis of Microstructure and Hot Deformation Behavior of Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si Alloy

Thermal Deformation Behavior and Dynamic Softening Mechanisms of Zn-2.0Cu-0.15Ti Alloy: An Investigation of Hot Processing Conditions and Flow Stress Behavior

Microstructure evolution and mechanical responses of Al–Zn–Mg–Cu alloys during hot deformation process

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