Deformation induced solute segregation and G.P. zone formation in Mg-Al and Mg-Zn binary alloys

Sasaki, Taisuke; Lin, Jiao; Yi, Peng; Li, Z.H.; Prameela, Suhas Eswarappa; Park, A.; Lipkin, Elaine; Lee, A.; Falk, Michael L.; Weihs, Timothy P.; Hono, K.

doi:10.1016/j.scriptamat.2022.114924

Cited by 18 publications

(2 citation statements)

References 36 publications

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“…The GP zone precipitation of Mg-Zn alloys has only been reported in the low-temperature ECAP or aging treatment at less than 15 °C. [29,30] The GP zone is thermodynamically unstable, and it is easy to transform into metastable β 1 0 -Mg 4 Zn 7 or β 2 0 -MgZn 2 after high temperature or long-time heating, and it just can be retained under the high cooling rate after hot drawing. [31] However, in this study, the continued severe deformation at the higher temperature of 32 °C can produce stable and high-density GP zone precipitation, which provides a way to tailor the mechanical properties of Mg-Zn alloys by thermal deformation.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Strength–Ductility Synergy of Mg–6Zn Alloy Wire by Inducing Guinier–Preston Zone Precipitation

Yan,

Cheng,

Shao

et al. 2024

Adv Eng Mater

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This paper designs a strategy of introducing ultrafine precipitates into single‐phase microstructure to enhance Mg‐6Zn alloy wire. Three combined processes including equal channel angular pressing (ECAP), direct extrusion, and multi‐pass drawing are used to produce 0.3mm diameter wire. The results show that an isothermal process of ECAP, extrusion, and drawing at 320°C (named route B) produces a near fully solid solution microstructure and causes a very high elongation of 21% as well as an ultimate tensile strength of 24MPa. Furthermore, on this basis, the addition of an aging treatment before drawing induces the precipitation of the GP zone in the near single‐phase Mg matrix and improves the tensile elongation to 28%, and the ultimate tensile strength also is increased to 290MPa.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Enhanced Strength–Ductility Synergy of Mg–6Zn Alloy Wire by Inducing Guinier–Preston Zone Precipitation

Yan,

Cheng,

Shao

et al. 2024

Adv Eng Mater

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“…However, it is also known that it is difficult to specify the location of hydrogen. There are some techniques to visualize local distributions of hydrogen: hydrogen micro-print technique [1], silver decoration technique [2], secondary ion mass spectrometry (SIMS) [3], Kelvin probe force microscopy (KPFM) [4], and atom probe [5]. An in-situ technique for hydrogen visualization in metals using Ir complex has been reported.…”

Section: Introductionmentioning

confidence: 99%

Sample Holder for Time Dependence Silver-decoration under Optical Microscope Observation

Itakura,

Kusawake,

Fujimaru

et al. 2024

e-J. Surf. Sci. Nanotechnol.

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Silver decoration is a highly reliable experimental method that has been used for a long time to confirm the location of hydrogen on metal. In order to measure hydrogen permeation through vanadium membranes, we made a cell for electrochemical charge of hydrogen on back side of the sample of silver decoration experiment. A small aquarium pump circulates the solution for electrochemical hydrogen charging and prevents hydrogen gas bubbles from interfering hydrogen charging to the sample. By placing this cell on the sample stage of an optical microscope, we can conduct silver decoration experiments while observing the microscope image.

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Study on Microstructural Evolution and GP Zone Strengthening Mechanism by Solution and Aging Treatment in Non-dendritic Mg-6Zn-5Al Magnesium Alloy

Zhang,

Niu,

et al. 2024

JOM

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Deformation induced solute segregation and G.P. zone formation in Mg-Al and Mg-Zn binary alloys

Cited by 18 publications

References 36 publications

Enhanced Strength–Ductility Synergy of Mg–6Zn Alloy Wire by Inducing Guinier–Preston Zone Precipitation

Enhanced Strength–Ductility Synergy of Mg–6Zn Alloy Wire by Inducing Guinier–Preston Zone Precipitation

Sample Holder for Time Dependence Silver-decoration under Optical Microscope Observation

Study on Microstructural Evolution and GP Zone Strengthening Mechanism by Solution and Aging Treatment in Non-dendritic Mg-6Zn-5Al Magnesium Alloy

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