Evolution of Microstructure and Mechanical Properties of a New Al–Cu–Er Wrought Alloy

Pozdnyakov, A. V.; Barkov, R. Yu.; Sarsenbaev, Zh.; Амер, С. М.; Prosviryakov, A. S.

doi:10.1134/s0031918x19060097

Cited by 39 publications

(27 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The type of secondary phase was changed by adding Er, which decreased the pitting corrosion resistance. During solidification, the solute redistribution enabled the Er at the front of the solid-liquid interface to easily reach the eutectic composition point; therefore, the Al 8 Cu 4 Er phase will nucleate and grow [13,29,30]. After heat treatment and rolling deformation, the Al 8 Cu 4 Er phase was broken along the rolling direction (Fig.…”

Section: Pitting Corrosion Behavior With Er Alloyingmentioning

confidence: 99%

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Shi

Zhou

Zhang

2020

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

The effect of Al 8 Cu 4 Er phase on the corrosion behavior of Al-Cu-Mg alloy with rare earth Er addition in an under-aging state was studied. The results revealed that the addition Er into the Al-Cu-Mg alloy induced the formation of Al 8 Cu 4 Er phase. The Al 8 Cu 4 Er phase can significantly refine the grains during recrystallization, thereby suppressing the continuous precipitation of S-phase at grain boundaries and improving the resistance to intergranular corrosion. Conversely, the corrosion susceptibility of local regions around the Al 8 Cu 4 Er phase with large dimension was higher than that of the AlCuFeMnSi phase, but weaker than that of θ phase, resulting in decreased pitting corrosion resistance.

show abstract

Section: Pitting Corrosion Behavior With Er Alloyingmentioning

confidence: 99%

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Shi

Zhou

Zhang

2020

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

show abstract

“…A finer grain structure (25-40 µm) was seen in AlCuYMg1 and AlCuErMg1 due to higher Ti content [22]. The microstructure of the Al-Cu-Y and Al-Cu-Er system based quasibinary alloys with Zr, Mn, Ti, Mg addition was investigated in detail in previous works [8][9][10][11][12][13][14][15][16] [8][9][10][11][12][13][14][15][16]22,23] with a size of 0.5-4 µm were present in the microstructure of the investigated alloys in the as-homogenized state. The average intermetallic phase particles size was 1.5 ± 0.5 µm.…”

Section: Initial Microstructurementioning

confidence: 98%

“…Novel Al-Cu-Y [8][9][10][11][12] and Al-Cu-Er [9,[13][14][15][16] alloys demonstrate enhanced casting and mechanical properties due to a wide solidification range [8,9,11,[17][18][19][20] and particle dispersion and thermally stable structure [8][9][10][11][12][13][14][15][16]. Perspective quasibinary Al-Cu-Ce alloys also exhibit such properties [21].…”

Section: Introductionmentioning

confidence: 99%

Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys

Хомутов

Амер

Barkov

et al. 2021

Metals

View full text Add to dashboard Cite

The compression tests in a temperature range of 400–540 °C and strain rates of 0.1–15 s−1 were applied to novel Al-Cu-Y(Er)-Mg-Mn-Zr alloys to investigate their hot deformation behavior. The higher volume fraction of the intermetallic particles with a size of 0.5–4 µm in the alloys caused an increase in flow stress. Hyperbolic sine law constitutive models were constructed for the hot deformation behavior of Al-Cu-Y(Er)-Mg-Mn-Zr alloys. Effective activation energy has a higher value in the alloys with Er than in the alloys with Y. According to the processing maps, the temperature range of 420–480 °C and strain rates higher than 5 s−1 are the most unfavorable region for hot deformation for the investigated alloys. The deformation at 440 °C and 15 s−1 led to cracks on the surface of the sample. However, internal cracks were not observed in the microstructure after deformation. The optimum hot deformation temperatures were in a range of 500–540 °C and at strain rates of 0.1–15 s−1.

show abstract

“…It was also found that quasi-binary alloys in the ternary Al-Cu-Er system may be used to develop novel cast and wrought alloys [18,19]. Ternary alloys with a 4/1 atomic rotation of Cu/Er from the quasi-binary section Al-Al 8 Cu 4 Er have a narrow solidification range (less than 40 • C) [18,19] compared with that of the Al-Cu alloys (about 100 • C) [20][21][22][23], which can provide the same casting properties found in Al-Si-Cu alloys [20][21][22][23][24][25]. Investigations of the quasi-binary alloys of the Al-Cu-Y and Al-Cu-Ce systems demonstrated low hot cracking susceptibility [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Investigations of the quasi-binary alloys of the Al-Cu-Y and Al-Cu-Ce systems demonstrated low hot cracking susceptibility [26][27][28]. Moreover, the fine eutectic Al 8 Cu 4 Er phase demonstrates good size stability during high temperature homogenization treatment [18,19]. Zirconium addition in the ternary Al-Cu-Y and Al-Cu-Er alloys significantly improves the yield strength of the rolled alloys due to Al 3 (Y,Zr) [29] and Al 3 (Er,Zr) [30] precipitate nucleation after homogenization treatment.…”

Section: Introductionmentioning

confidence: 99%

The Phase Composition and Mechanical Properties of the Novel Precipitation-Strengthening Al-Cu-Er-Mn-Zr Alloy

et al. 2020

View full text Add to dashboard Cite

The microstructure, phase composition, and mechanical properties during heat treatment and rolling of the novel Al-5.0Cu-3.2Er-0.9Mn-0.3Zr alloy were evaluated. A new quaternary (Al,Cu,Mn,Er) phase with possible composition Al25Cu4Mn2Er was found in the as-cast alloy. Al20Cu2Mn3 and Al3(Zr,Er) phases were nucleated during homogenization, and θ″(Al2Cu) precipitates were nucleated during aging. The metastable disc shaped θ″(Al2Cu) precipitates with a thickness of 5 nm and diameter of 100–200 nm were nucleated mostly on the Al3(Zr,Er) phase precipitates with a diameter of 35 nm. The hardness Vickers (HV) peak was found after the annealing of a rolled alloy at 150 °C due to strengthening by θ″(A2Cu) precipitates, which have a larger effect in materials hardness than do the softening processes. The novel Al-Cu-Er-Mn-Zr alloy has a yield strength (YS) of 320–332 MPa, an ultimate tensile strength (UTS) of 360–370 MPa, and an El. of 3.2–4.0% in the annealed alloy after rolling condition.

show abstract

Evolution of Microstructure and Mechanical Properties of a New Al–Cu–Er Wrought Alloy

Cited by 39 publications

References 23 publications

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Hot Deformation Behavior of Novel Al-Cu-Y(Er)-Mg-Mn-Zr Alloys

The Phase Composition and Mechanical Properties of the Novel Precipitation-Strengthening Al-Cu-Er-Mn-Zr Alloy

Contact Info

Product

Resources

About