The Effect of Sintering Temperature to the Microstructure and Properties of AZ91 Magnesium Alloy by Powder Metallurgy

AZ91 magnesium alloy was fabricated by powder metallurgy. The effects of sintering temperature on the relative density, hardness and tensile strength were investigated. The microstructure of the material was observed by scanning electron microscopy (SEM) and Energy Disperse Spectroscopy (EDS). The study found that the best sintering temperature is 550°C under the vacuum hotpressing, and at this sintering temperature the relative density can reach to 98.3%. SEM and EDS show that the sintering microstructure of the alloy is composed of α-Mg solid solution and the second phase β-Mg17Al12. Under the 550°C sintering temperature, Volume diffusion is the mainly sintering form, and produced more β-Mg17Al12 which is dispersively distributed on the grain boundary, and improves the hardness of alloy by second-phase strength.

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Mechanical and Damping Properties of Fullerene-Dispersed AZ91 Magnesium Alloy Composites Processed by a Powder Metallurgy Route

MATERIALS TRANSACTIONS ◽

10.2320/matertrans.47.999 ◽

2006 ◽

Vol 47 (4) ◽

pp. 999-1007 ◽

Cited By ~ 9

Author(s):

Hiroyuki Watanabe ◽

Masami Sugioka ◽

Masao Fukusumi ◽

Koichi Ishikawa ◽

Mitsuo Suzuki ◽

...

Keyword(s):

Powder Metallurgy ◽

Magnesium Alloy ◽

Damping Properties ◽

Az91 Magnesium Alloy ◽

Az91 Magnesium ◽

Powder Metallurgy Route

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Effect of Sc on Microstructures and Corrosion Properties of AZ91

Materials Science Forum ◽

10.4028/www.scientific.net/msf.546-549.139 ◽

2007 ◽

Vol 546-549 ◽

pp. 139-142 ◽

Cited By ~ 9

Author(s):

Su Juan Yao ◽

Dan Qing Yi ◽

Sheng Yang ◽

X.H. Cang ◽

W.X. Li

Keyword(s):

Magnesium Alloy ◽

Electrochemical Technique ◽

Second Phase ◽

Az91 Magnesium Alloy ◽

Corrosion Properties ◽

Corrosion Resistant ◽

Az91 Magnesium

The microstructures and corrosion properties of AZ91 magnesium alloy with trace additions of Sc were investigated. The microstructures were observed by OM and SEM, and the corrosion properties were studied by electrochemical technique. The results show that the alloys with Sc form a second-phase Al3Sc, the grains become finer with the increasing content of Sc and the microstructure is the finest when Sc content up to 0.6%, the corrosion resistant of alloy combining with Sc is improved.

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Effect of sintering temperature on microstructure and mechanical properties of AZ91 magnesium alloy via spark plasma sintering

Advanced Engineering Materials ◽

10.1002/adem.202100905 ◽

2021 ◽

Author(s):

Yunpeng Zhu ◽

Jiayu Qin ◽

Jinhui Wang ◽

Peipeng Jin

Keyword(s):

Mechanical Properties ◽

Magnesium Alloy ◽

Spark Plasma Sintering ◽

Sintering Temperature ◽

Az91 Magnesium Alloy ◽

Microstructure And Mechanical Properties ◽

Plasma Sintering ◽

Az91 Magnesium ◽

Spark Plasma

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Effects of the drill flute number on drilling of a casted AZ91 magnesium alloy

Materials Testing ◽

10.3139/120.111315 ◽

2019 ◽

Vol 61 (3) ◽

pp. 260-266 ◽

Cited By ~ 3

Author(s):

Ugur Koklu ◽

Sezer Morkavuk ◽

Levent Urtekin

Keyword(s):

Magnesium Alloy ◽

Az91 Magnesium Alloy ◽

Az91 Magnesium

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High temperature tensile, compression and creep behaviour of recycled short carbon fibre reinforced AZ91 magnesium alloy fabricated by a high shearing dispersion technique

Journal of Magnesium and Alloys ◽

10.1016/j.jma.2021.03.029 ◽

2021 ◽

Author(s):

Sinan Kandemir ◽

Sarkis Gavras ◽

Hajo Dieringa

Keyword(s):

High Temperature ◽

Magnesium Alloy ◽

Carbon Fibre ◽

Creep Behaviour ◽

Az91 Magnesium Alloy ◽

Az91 Magnesium ◽

Dispersion Technique ◽

High Temperature Tensile ◽

High Shearing ◽

Short Carbon

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Interfacial reaction in squeeze cast SICW/AZ91 magnesium alloy composite

Scripta Materialia ◽

10.1016/1359-6462(96)00169-8 ◽

1996 ◽

Vol 35 (4) ◽

pp. 529-534 ◽

Cited By ~ 21

Author(s):

Kun Wu ◽

Mingyi Zheng ◽

Min Zhao ◽

Congkai Yao ◽

Jihong Li

Keyword(s):

Magnesium Alloy ◽

Interfacial Reaction ◽

Alloy Composite ◽

Az91 Magnesium Alloy ◽

Squeeze Cast ◽

Az91 Magnesium

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Improved corrosion response of squeeze-cast AZ91 magnesium alloy with Calcium and Bismuth additions

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2021.159600 ◽

2021 ◽

pp. 159600

Author(s):

Jichil Majhi ◽

Sourav Ganguly ◽

A. Basu ◽

A.K. Mondal

Keyword(s):

Magnesium Alloy ◽

Az91 Magnesium Alloy ◽

Squeeze Cast ◽

Az91 Magnesium

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Investigation of the Influence of Open-Die Forging Parameters on the Flow Kinetics of AZ91 Magnesium Alloy

Materials ◽

10.3390/ma14144010 ◽

2021 ◽

Vol 14 (14) ◽

pp. 4010

Author(s):

Grzegorz Banaszek ◽

Teresa Bajor ◽

Anna Kawałek ◽

Tomasz Garstka

Keyword(s):

Magnesium Alloy ◽

Operation Time ◽

Strength Properties ◽

Hydraulic Press ◽

Az91 Alloy ◽

Az91 Magnesium Alloy ◽

Numerical Tests ◽

Az91 Magnesium ◽

Product Manufacturing ◽

Open Die Forging

This paper presents the results of numerical tests of the process of forging magnesium alloy ingots (AZ91) on a hydraulic press with the use of flat and proprietary shaped anvils. The analysis of the hydrostatic pressure distribution and the deformation intensity was carried out. It is one of the elements used for determining the assumptions for the technology of forging to obtain a semi-finished product from the AZ91 alloy with good strength properties. The aim of the research was to reduce the number of forging passes, which will shorten the operation time and reduce the product manufacturing costs. Numerical tests of the AZ91 magnesium alloy were carried out using commercial Forge®NxT software.

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