Hot Deformation Behavior and Microstructure of 6069 Aluminum Alloy

Li, Hui Zhong; Jiang, Jun; Deng, Min; Liang, Xianjun; Ouyang, Jing

doi:10.4028/www.scientific.net/msf.788.201

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…The curve between log

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Section: Resultsmentioning

confidence: 99%

Hot Deformation Behavior and Processing Maps of a New Ti-6Al-2Nb-2Zr-0.4B Titanium Alloy

Yang

Lang

et al. 2021

Materials

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The hot deformation behaviors of a new Ti-6Al-2Nb-2Zr-0.4B titanium alloy in the strain rate range 0.01–10.0 s−1 and temperature range 850–1060 °C were evaluated using hot compressing testing on a Gleeble-3800 simulator at 60% of deformation degree. The flow stress characteristics of the alloy were analyzed according to the true stress–strain curve. The constitutive equation was established to describe the change of deformation temperature and flow stress with strain rate. The thermal deformation activation energy Q was equal to 551.7 kJ/mol. The constitutive equation was ε ˙=e54.41[sinh (0.01σ)]2.35exp(−551.7/RT). On the basis of the dynamic material model and the instability criterion, the processing maps were established at the strain of 0.5. The experimental results revealed that in the (α + β) region deformation, the power dissipation rate reached 53% in the range of 0.01–0.05 s−1 and temperature range of 920–980 °C, and the deformation mechanism was dynamic recovery. In the β region deformation, the power dissipation rate reached 48% in the range of 0.01–0.1 s−1 and temperature range of 1010–1040 °C, and the deformation mechanism involved dynamic recovery and dynamic recrystallization.

show abstract

“…The curve between log

and

in Figure 9 is fitted using the cubic spline function. The magnitude of

can be indicated by the polynomial in

[ 35 ]:

…”

Section: Resultsmentioning

confidence: 99%

Hot Deformation Behavior and Processing Maps of a New Ti-6Al-2Nb-2Zr-0.4B Titanium Alloy

Yang

Lang

et al. 2021

Materials

View full text Add to dashboard Cite

show abstract

“…The mechanical properties of this alloy have been comprehensively explored [1][2][3][4][5][6]; however, its hot deformation behavior has yet to be comprehensively analyzed [7].…”

Section: Introductionmentioning

confidence: 99%