Effect of Retrogression and Re-aging Treatment on Properties and Microstructure of a New Type of Al–Zn–Mg–Er–Zr Alloy

An Al-3%Mg-0.25%Sc-0.12%Zr alloy was deformed by triaxial forging at 20-400°C up to strains of about 3. A study of its textural evolution reveals the tendency towards three symmetrical variants of a <110><1 10 ><001> component. This experimental observation is supported by a 3D spatially resolved crystal plasticity analysis. Samples strained at room temperature undergo grain fragmentation in the form of fine substructures and relatively weak textures. Conversely, at 300°C and above, more homogeneous intergranular deformation and rotations give rise to stronger textures. This eventually encourages grain coalescence and thus the development of interpenetrating “orientation chains”, creating a new type of microstructure. The influence of this texture development on the specific work hardening behaviour is discussed.

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Hot deformation behavior and constitutive equation of a new type Al–Zn–Mg–Er–Zr alloy during isothermal compression

Materials Science and Engineering A ◽

10.1016/j.msea.2015.10.122 ◽

2016 ◽

Vol 651 ◽

pp. 415-424 ◽

Cited By ~ 65

Author(s):

H. Wu ◽

S.P. Wen ◽

H. Huang ◽

X.L. Wu ◽

K.Y. Gao ◽

...

Keyword(s):

Constitutive Equation ◽

Hot Deformation ◽

Deformation Behavior ◽

Isothermal Compression ◽

Hot Deformation Behavior ◽

New Type ◽

Zr Alloy

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Optimizing the strength, ductility and electrical conductivity of a Cu-Cr-Zr alloy by rotary swaging and aging treatment

Materials Science and Engineering A ◽

10.1016/j.msea.2019.01.002 ◽

2019 ◽

Vol 746 ◽

pp. 211-216 ◽

Cited By ~ 21

Author(s):

A.H. Huang ◽

Y.F. Wang ◽

M.S. Wang ◽

L.Y. Song ◽

Y.S. Li ◽

...

Keyword(s):

Electrical Conductivity ◽

Aging Treatment ◽

Rotary Swaging ◽

Zr Alloy

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A high strength and high electrical conductivity Cu-Cr-Zr alloy fabricated by cryorolling and intermediate aging treatment

Materials Science and Engineering A ◽

10.1016/j.msea.2016.10.087 ◽

2017 ◽

Vol 680 ◽

pp. 108-114 ◽

Cited By ~ 49

Author(s):

Shaojian Zhang ◽

Rengeng Li ◽

Huijun Kang ◽

Zongning Chen ◽

Wei Wang ◽

...

Keyword(s):

Electrical Conductivity ◽

Aging Treatment ◽

High Strength ◽

High Electrical Conductivity ◽

Zr Alloy

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Evolution of microstructure and properties of Al–Zn–Mg–Cu–Sc–Zr alloy during aging treatment

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2015.10.296 ◽

2016 ◽

Vol 658 ◽

pp. 946-951 ◽

Cited By ~ 38

Author(s):

Miao Zhang ◽

Tao Liu ◽

Chunnian He ◽

Jian Ding ◽

Enzuo Liu ◽

...

Keyword(s):

Aging Treatment ◽

Microstructure And Properties ◽

Evolution Of Microstructure ◽

Zr Alloy

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Design and Research on Mechanical Properities of New Type Low Modulus Biomedical Metastable β Titanium Alloy

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.311-313.1667 ◽

2011 ◽

Vol 311-313 ◽

pp. 1667-1672

Author(s):

Shuang Jin Liu ◽

Fen Fei Cai ◽

Chun Xiang Cui ◽

Xun Yao ◽

Li Chen Zhao

Keyword(s):

Tensile Strength ◽

Titanium Alloy ◽

Biomedical Applications ◽

Design Method ◽

Solution Treatment ◽

Aging Treatment ◽

Test Results ◽

Biomechanical Compatibility ◽

Low Modulus ◽

New Type

One new type metastable β-titanium-alloy for biomedical applications Ti-25Nb-2Mo-4Zr (wt %) with lower elastic modulus was designed based on the d-electron alloy design method and prepared in this study. The microstructure and basic mechanical properties of designed alloy were investigated in this paper. The test results show that the Yang’s modulus is 65GPa and the tensile strength is 863MPa of designed alloy after solution treatment at 700°C for 0.5 h; the Yang’s modulus is 68GPa and the tensile strength is 1032MPa for the designed alloy after aging treatment at 500°C for 2 h. The designed alloy with lower Yang’s modulus is expected to have good prospects for implant biomaterials for its excellent biomechanical compatibility.

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Effects of Aging Treatment on Corrosion Behavior of a Tensile Deformed Al-Cu-Mn-Fe-Zr Alloy in 3.5% NaCl Solution

Materials ◽

10.3390/ma14175062 ◽

2021 ◽

Vol 14 (17) ◽

pp. 5062

Author(s):

Qing Tian ◽

Qiu-Mei Yang ◽

Yong-Cheng Lin ◽

Jun-Quan Wang ◽

Xu-Hao Zhu

Keyword(s):

Corrosion Resistance ◽

Grain Boundaries ◽

Aging Time ◽

Pitting Corrosion ◽

Resistance Mechanism ◽

Aging Treatment ◽

Corrosion Current ◽

Potential Difference ◽

Aged Alloy ◽

Zr Alloy

In this paper, the effects of an aging treatment on the corrosion resistance/mechanism of a tensile deformed Al-Cu-Mn-Fe-Zr alloy are investigated. The impedance magnitude and polarization resistance increase, while the corrosion current decreases with the increased aging time and temperature. The discontinuously-distributed precipitates and precipitation-free zone, which can cut the corrosion channels, appear at grain boundaries when the temperature is relatively high and the aging time is relatively long. They can improve the corrosion resistance. Additionally, the intergranular and pitting corrosion are the main mechanisms. The intergranular corrosion is likely to occur in an under-aged alloy. This is because the potential difference between the grain boundaries and grains is high, due to the segregation of Cu atoms. When the aging degree is increased, the grain boundary precipitates reduce the potential difference, and the intragranular precipitates make the surrounding matrix prone to dissolution. As such, the pitting corrosion is likely to occur in the over-aged alloys.

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