Aging hardening and precipitate behavior of a solution-treated Mg-6Zn-4Sn-1Mn (wt.%) wrought Mg alloy

The aging hardening curve of AZ91D magnesium alloy was gained, and aging behavior of the alloy was investigated with Vickers hardness measurement, differential scanning calorimetry (DSC), transmission electron microscope (TEM) after solution treated at 415°C for 10h , and water quenched at room temperature , afterwards aged at 175°C for 0-38h with a 2h interval. The result show that there are three aging peaks at aging hardening curve of AZ91D magnesium alloy, and that four types of β-Mg17Al12 precipitates were responsible for the aging peaks.

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Formation of abnormal coarse grains and its effects on corrosion behaviors of solution treated ZK60 Mg alloy

Corrosion Science ◽

10.1016/j.corsci.2020.109201 ◽

2021 ◽

Vol 180 ◽

pp. 109201

Author(s):

Jianwei Tang ◽

Liang Chen ◽

Zhigang Li ◽

Guoqun Zhao ◽

Cunsheng Zhang

Keyword(s):

Mg Alloy ◽

Solution Treated ◽

Coarse Grains ◽

Corrosion Behaviors

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Effect of Grain Size on Fatigue Strength of Solution-Treated Al-2.4%Mg Alloy

Journal of the Japan Institute of Metals and Materials ◽

10.2320/jinstmet1952.40.10_1016 ◽

1976 ◽

Vol 40 (10) ◽

pp. 1016-1024

Author(s):

Kenji Hatanaka ◽

Toshiro Yamada

Keyword(s):

Grain Size ◽

Fatigue Strength ◽

Mg Alloy ◽

Solution Treated

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Mechanical behavior and texture development of over-aged and solution treated Al-Cu-Mg alloy during multi-directional forging

Materials Characterization ◽

10.1016/j.matchar.2017.11.048 ◽

2018 ◽

Vol 135 ◽

pp. 221-227 ◽

Cited By ~ 9

Author(s):

Saeed Khani Moghanaki ◽

Mohsen Kazeminezhad ◽

Roland Logé

Keyword(s):

Mechanical Behavior ◽

Texture Development ◽

Mg Alloy ◽

Solution Treated

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Comparing Age Hardening Behaviors of Al-3Cu and Al-8Si-3Cu Alloys

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.146-147.1667 ◽

2010 ◽

Vol 146-147 ◽

pp. 1667-1670

Author(s):

Gui Qing Wang ◽

Yan Liu ◽

Guo Cheng Ren ◽

Zhong Kui Zhao

Keyword(s):

Water Quenching ◽

Age Hardening ◽

Microstructure Characteristics ◽

Solution Treated ◽

Early Aging ◽

Peak Aging ◽

Aging Hardening ◽

Aging Stage

The aging hardening behaviors of Al-8Si-3%Cu (wt%) and Al-3Cu (wt%) alloys have been investigated. Samples were solution treated at 500 for 24 h followed by water quenching before aging. Hardness has been measured for quenched samples aging at 150°C. Strong age hardening occurs for Al-3Cu alloy and hardness increases by about 60% after peak aging. There is a hardness decrease in the early aging stage of Al-8Si-3Cu alloy and hardness increases by about 15% after peak aging. The age precipitation behaviors have been analyzed using DSC and TEM. Effects of microstructure characteristics on age precipitation and age hardening response of Al-8Si-3Cu alloy have been discussed.

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Surface and interface characteristics of CeO2 doped Al2O3 coating on solution treated and peak aged AZ91 Mg alloy

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.07.082 ◽

2017 ◽

Vol 332 ◽

pp. 511-521 ◽

Cited By ~ 4

Author(s):

Sanjeet Kumar ◽

Deepak Kumar ◽

Jayant Jain

Keyword(s):

Mg Alloy ◽

Al2o3 Coating ◽

Surface And Interface ◽

Solution Treated ◽

Interface Characteristics ◽

Peak Aged

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Two-Step Aging Behaviour of Solution Treated A356 System Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.941.1083 ◽

2018 ◽

Vol 941 ◽

pp. 1083-1087

Author(s):

Masahiko Iijima ◽

Tomoya Ozasa ◽

Susumu Ikeno ◽

Kenji Matsuda ◽

Seiji Saikawa

Keyword(s):

Solution Treatment ◽

Aging Treatment ◽

Hardness Measurement ◽

Mg Alloy ◽

Peak Hardness ◽

System Alloy ◽

Solution Treated ◽

Heat Treated ◽

Final Aging ◽

Positive Effect

Al-7mass%Si-0.3mass%Mg alloy is widely applied to the automotive components, such as road wheel or suspension frame because of having higher ductility and corrosion resistance. Two-step aging behavior of solution treated Al-7mass%Si-0.3mass%Mg system alloy A356 cast into permanent mold and solution treated was investigated by micro-vickers hardness measurement, optical microscopy (OM) and transmission electron microscopy (TEM). The microstructure of as-cast state was consist of primary crystallized α-Al and secondary crystallized eutectic phases. Al-7mass%Si-0.3mass%Mg alloy after casting, the test specimens were heat treated for different pre-aging temperatures at 273K, 348K and 423K for various times after solution treatment at 813K for 36ks. After pre-aging treatment, the test specimens were heat treated for artificial aging at 523K for various times. The peak hardness increased almost the same value when the pre-aging temperature was 273K. On the other hands, positive effect of the final-aging was occurred after pre-aging at 348K and 423K with significantly increasing hardness in the under-aging region. The fine precipitates were observed in the specimen which was final aging at 523K after pre-aging at 348K and 423K.Such a positive effect is considered due to the influence of precipitated phase mainly such as clusters and /or G.P.zone.The present study aims to investigate the effect of pre-aged temperature on final-aged behavior in A356 system alloy.

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