The deformation behavior and processing maps in the isothermal compression of 7A09 aluminum alloy

Luo, Jiao; Li, M.Q.; Ma, Dong

doi:10.1016/j.msea.2011.10.120

Cited by 61 publications

(17 citation statements)

References 23 publications

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“…(3). a ¼ 0:9591¾ 5 À 1:7087¾ 4 þ 0:9879¾ 3 À 0:1835¾2 À 0:0073¾ þ 0:0230 n ¼ À263:9033¾ 5 þ 519:7577¾4 À 383:5277¾ 3 þ 136:5046¾ 2 À 23:8418¾ þ 6:1491 Q ¼ À27751:8183¾ 5 þ 56761:0175¾ 4 À 44585:0667¾ 3 þ 16862:8599¾ 2 À 3089:9409¾ þ 440:4428 ln A ¼ À4763:1857¾ 5 þ 9721:0974¾ 4 À 7571:9380¾ 3 þ 2823:9367¾ 2 À 507:6300¾ þ 69:4120…”

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The Flow Softening Behavior and Deformation Mechanism of AA7050 Aluminum Alloy

Yang

Liu

et al. 2019

Mater. Trans.

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The flow softening behavior and deformation mechanism of AA7050 aluminium alloy are investigated though hot compressive tests using a Gleebe-1500 thermal simulator at strain rates of 0.01³10 s ¹1 and temperatures of 300³450°C. The results show that the maximal relative softening transforms from 350°C to 450°C with increasing strain rate. Based on the processing maps and microstructure characterizations, dynamic recovery, dynamic precipitation and coarsening may be responsible for the softening behavior of AA7050 aluminium alloy at 350°C and 0.01 s ¹1. With increasing strain rate and temperature, high level of the flow softening is associated with deformation heating, dynamic recovery and dynamic recrystallization. The superimposed processing map with various strains is established, indicating that the optimum hot workability domain is the temperature range of 390³450°C and strain rate range of 0.1³0.01 s ¹1 .

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The Flow Softening Behavior and Deformation Mechanism of AA7050 Aluminum Alloy

Yang

Liu

et al. 2019

Mater. Trans.

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“…[28,29] proposed that the effect of strain on the workability of a 42CrMo steel and 7075 aluminum alloy is most significant. Lin et al [14,30] and Luo et al [31,32] also pointed out that the strain has a great effect on the processing map.…”

Section: Establishment Of Processing Mapmentioning

confidence: 99%

“…As increasing deformation temperature or decreasing strain rate, the number of the particles decreases and the size of particles increase, and even the coarse particles will gradually dissolve into the matrix, which may be responsible to a change of the iso-efficiency contours in those curvatures at about 660-700K. Luo et al [32] demonstrated that the dissolution of T phase (AlZnMgCu) particles has effect on the curvatures of iso-efficiency contours at 690K in processing map.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Hot deformation behavior and processing map of a new type Al-Zn-Mg-Er-Zr alloy

Wen

Huang

et al. 2016

Journal of Alloys and Compounds

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“…Lin et al [11] developed a constitutive equation for describing flow stress of AA2124-T851 for temperatures ranging from 380°C to 470°C and a wide range of strain rates from 0.01 s À1 to 10 s À1 by compression testing. Furthermore, hot deformation behavior and workability of different types of aluminum alloys were examined in several other works utilizing hot compression or hot torsion tests [12][13][14][15][16][17] Aluminum alloys reinforced with strengthening particles were also considered in a few works. Rajamuthamilselvan and Ramanathan [18] studied hot working of AA7075-15% SiCp using compression tests in temperatures and strain rates of 300-500°C and 0.001-1.0 s À1 , respectively.…”

Section: Introductionmentioning

confidence: 99%