Uncovering the unexpected changes of creep properties in AZ-series Mg alloys

T Chen, S Hu, S Li, Q Huo - Materials Science and Engineering: A, 2022 - Elsevier
The creep behaviors of solution-treated pure Mg and AZ-series alloys including AZ31, AZ61
and AZ91 were systematically unveiled at 453 K along the rolling direction. The most …

Unexpected deterioration on the creep resistance of Mg-8wt% Gd alloy via peak-aging treatment

Z Zhang, Q Huo, L Luo, Y Zhang, Z Xiao, S Li… - Materials Science and …, 2023 - Elsevier
Age-hardening has been considered as an efficient way to enhance the creep resistance of
Mg-RE alloys for a long time. However, the present work reported the unexpected …

First-principles study on the elastic anisotropy and thermal properties of Mg–Y compounds

Y Zhou, Y Lin, H Wang, Q Dong, J Tan - … of Physics and Chemistry of Solids, 2022 - Elsevier
Magnesium (Mg) alloys are widely used in automobile, rail transit, and other fields; however
their heat resistance and deformation ability should be improved. In the present work, the …

Unraveling the individual effect of yttrium and neodymium on the precipitate-free zone development and the dislocation creep mechanism of Mg-Y-Nd alloy

Z Zhang, Q Huo, Y Zhang, Y He, H Nagaumi… - Materials …, 2023 - Elsevier
The individual effects of Y and Nd elements on the precipitate-free zone (PFZ) development
and the dislocation creep mechanism of a Mg-4Y-3.5 Nd alloy were investigated using …

Highly improved creep resistance of hot-extruded Mg-0.9 Mn-0.5 Ce alloy by conventional forging

Y Zhang, D Chen, H Nagaumi, X Yang - Materials Science and …, 2022 - Elsevier
The insufficient creep resistance seriously restricts the practical application of Mg alloys,
which needs to be preferentially resolved. In this work, the conventional forging was adopted …

Tracing the microstructures, mechanical properties and thermal conductivity of low-temperature extruded MgMn alloys with various cerium additions

Y Zhang, H Kang, H Nagaumi, X Yang - Materials Characterization, 2023 - Elsevier
The effects of Ce additions on the microstructures, mechanical properties and thermal
conductivity of low-temperature extruded Mg-0.9 Mn (wt%) alloy were systematically …

Study on the mechanism of dilute Mn addition in enhancing the creep resistance of hot-rolled Mg-1.5 Y alloy sheet

Y Zhang, Z Zhang, H Nagaumi, X Yang - Materials Science and …, 2023 - Elsevier
In this work, the compressive creep behaviors of Mg-1.5 wt% Y (0Mn alloy) and Mg-1.5 wt%
Y-1wt.% Mn (1Mn alloy) were investigated. The compressive creep tests were performed …

Effect of prior heat treatment on the microstructure evolution and creep resistance of ZK60 Mg alloy under tensile creep loading along normal direction

S Hu, Q Huo, C Wang, T Chen, S Li, X Yang - Materials Science and …, 2023 - Elsevier
Tensile creep tests were performed along the normal direction on the as-solutioned (AS)
and as-aged (AA) samples of a commercial ZK60 alloy in this work. The results showed that …

Distinguished roles of static aging and strain aging in the microstructure and creep resistance of Mg-4Y-3.5 Nd alloy

Z Zhang, Q Huo, Y Zhang, B Kim, H Nagaumi… - Journal of Materials …, 2024 - Elsevier
This work concerns the distinguished roles of static aging and strain aging in the creep
resistance of a hot-rolled Mg-4Y-3.5 Nd alloy. The solution-treated sample is named AS …

Preparing a dilute Mg-Mn-Zn alloy with ultra-high strength by coupling extrusion and forging at low temperatures

Y Zhang, H Kang, C Wang, H Nagaumi, X Yang - Materials Letters, 2023 - Elsevier
In this work, a Mg-1.0 Mn-1.0 Zn (wt.%) alloy with ultra-high strength was prepared by
extrusion at 438 K and forging at 453 K. High tensile yield strength of 373 MPa and ultimate …