Effects of Sc and Zr microalloying additions on the recrystallization texture and mechanism of Al–Zn–Mg alloys

Deng, Ying; Xu, Guofu; Yin, Zhoulan; Lei, Xuefeng; Huang, Jiwu

doi:10.1016/j.jallcom.2013.06.020

Cited by 66 publications

(15 citation statements)

References 62 publications

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“…Because of the strong inhibition of recrystallization achieved by Ce addition during isothermal annealing after high-strain rolling (Figure 1), recovery only occurs via formation of a large number of subgrains with the β rolling orientation. The intensities of the preferred nucleation S and brass orientations increase significantly with annealing temperature [28]. When annealing is extended to 4 h, recovery is associated with the accumulation of misorientations or annihilation of dislocations, leading to the formation of movable high-angle sub-boundaries.…”

Section: Resultsmentioning

confidence: 99%

Improved Recrystallization Resistance of Al–Cu–Li–Zr Alloy through Ce Addition

Dai

Li³

et al. 2018

Metals

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The effects of the addition of 0.29 wt % Ce on the recrystallization behavior of an Al–Cu–Li–0.13Zr (wt %) alloy during isothermal annealing were investigated. Ce addition greatly improved inhibition of recrystallization in this alloy compared with that in the Ce-free alloy. The texture of the Ce-containing alloy contained a large amount of β-fibers and fibrous unrecrystallized grain microstructures distributed along the rolling direction in the overall annealing process. The improved recrystallization resistance endowed by Ce addition can be attributed to the large number of small Al8Cu4Ce species formed on the grain boundary. These fine particles with high-temperature stability can exert a Zener pressure on the Al3Zr dispersoid-free grain boundary. The yield strength of the Ce-containing alloy increased significantly, to 38 MPa, and the fracture toughness improved by 56.28% compared with those of the Ce-free alloy. This work provides a convenient and economical method for enhancing the overall performance of an Al–Cu–Li–Zr alloy via recrystallization inhibition by Ce addition.

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Section: Resultsmentioning

confidence: 99%

Improved Recrystallization Resistance of Al–Cu–Li–Zr Alloy through Ce Addition

Dai

Li³

et al. 2018

Metals

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“…The mechanical property and corrosion performance of the studied two base alloys can be referenced to our previously published papers [22,23].…”

Section: Methodsmentioning

confidence: 99%

“…Marquis and co-workers [35] indicate that the Al 3 Sc is extraordinarily stable (up to 1320 77°C) and can prevent recrystallization almost to the solidus by Zener pinning of grain boundaries and dislocation. Moreover, the zirconium additions can add Zr-enriched outer shells onto the Al 3 Sc precipitates to form secondary Al 3 Sc x Zr 1 À x particles [10,36], which have better thermal stability than Al 3 Sc precipitates due to the lower diffusion coefficient of zirconium element than that of scandium [9,22], and thus can retain a high dispersity and the capacity to hamper recrystallization and stabilize grain structure even after being heated to the temperature close to the melting point of aluminum alloy. Therefore, it is reasonable to observe that fine grains and partially recrystallized grains remains at fusion boundaries in Al-Zn-Mg-Sc-Zr TIG welded joint in this study.…”

Section: Microstructure Of Tig Welded Jointsmentioning

confidence: 99%

Effects of Sc and Zr on mechanical property and microstructure of tungsten inert gas and friction stir welded aerospace high strength Al–Zn–Mg alloys

Deng

Peng

et al. 2015

Materials Science and Engineering: A

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“…The most significant strengthening effect was achieved by combination of Sc and Zr. Combined Sc/Zr-additions lead to the formation of Al 3 (Sc, Zr) [15], Al 3 (Sc, Zr) particles can significantly refine grains, inhibit recrystallization, and increase alloy strength [5,[16][17][18][19][20][21][22]. Adding Sc and Zr can decrease corrosion current density and improve exfoliation corrosion resistance [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Trace Elements on the Crystallization Temperature Interval and Properties of 5xxx Series Aluminum Alloys

et al. 2020

Metals

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The influence of alloying elements Er, Zr, Cu, Si and Zn on the crystallization temperature interval, microstructure, mechanical properties and corrosion behavior of Al-Mg-Mn alloy were studied by differential scanning calorimetry (DSC), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), tensile testing, electrochemical measurements and nitric acid mass loss test (NAMLT). The results show that the crystallization temperature range of Al-Mg-Mn alloy with addition of Zn decreased 4.7 °C. Cold rolled alloys mainly contain S texture, Copper texture, Brass texture, and Goss texture; the content of the S texture is the highest. With the addition of trace elements, the second phase Al3Er, Al3Zr, Al2CuMg, Mg2Si and MgZn2 can be formed, which can improve the tensile strength and yield strength of Al-Mg-Mn alloy. The addition of the alloying element Zn can also improve the intergranular corrosion resistance of the Al-Mg-Mn alloy.

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Effects of Sc and Zr microalloying additions on the recrystallization texture and mechanism of Al–Zn–Mg alloys

Cited by 66 publications

References 62 publications

Improved Recrystallization Resistance of Al–Cu–Li–Zr Alloy through Ce Addition

Improved Recrystallization Resistance of Al–Cu–Li–Zr Alloy through Ce Addition

Effects of Sc and Zr on mechanical property and microstructure of tungsten inert gas and friction stir welded aerospace high strength Al–Zn–Mg alloys

Effect of Trace Elements on the Crystallization Temperature Interval and Properties of 5xxx Series Aluminum Alloys

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