Deformation Behavior and Texture Formation in AZ80 Magnesium Alloy during Uniaxial Compression Deformation at High Temperatures

In previous study, the formation behavior of texture and microstructure in AZ80 magnesium alloy under high temperature deformation was investigated. It was found that the basal texture was formed at stress of more than 15-20MPa and the non-basal texture was formed at stress of less than 15-20MPa. This means that stress of 15-20MPa is the change point of deformation mechanism. Therefore, in this study, uniaxial compression deformation of AZ80 magnesium alloy was carried out at high temperature deformation (stress of 15-20MPa). Behaviors of microstructure and texture development are experimentally studied. The material used in this study is a commercial magnesium alloy extruded AZ80. The uniaxial compression deformation is performed at temperature of 723K and strain rate 3.0×10-3s-1, with a strain range of between-0.4 and-1.3. Texture measurement was carried out on the compression planes by the Schulz reflection method using nickel filtered Cu Kα radiation. EBSD measurement was also conducted in order to observe spatial distribution of orientation. As a result of high temperature deformation, the maximum value of the flow stress is observed at the true stress-strain curves, and the main component of texture and the accumulation of pole density vary depending on deformation condition.

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Hot Compression Deformation Behavior of the Mg-5Sn-2.5Pb Magnesium Alloy

Proceedings of the 2015 International Conference on Material Science and Applications ◽

10.2991/icmsa-15.2015.112 ◽

2015 ◽

Author(s):

Pin Xie ◽

Yun-Peng Zhu ◽

Pei-Peng Jin

Keyword(s):

Magnesium Alloy ◽

Deformation Behavior ◽

Hot Compression ◽

Hot Compression Deformation ◽

Compression Deformation

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Biaxial Deformation Behavior of AZ31 Magnesium Alloy at High Temperatures

Magnesium Technology 2012 ◽

10.1007/978-3-319-48203-3_60 ◽

2012 ◽

pp. 329-332

Author(s):

Daisuke Yamashita ◽

Masafumi Noda ◽

Kunio Funami

Keyword(s):

Magnesium Alloy ◽

High Temperatures ◽

Deformation Behavior ◽

Az31 Magnesium Alloy ◽

Biaxial Deformation

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Texture Formation Behaviors in AZ80 Magnesium Alloy during High-Temperature Plane Strain Compression

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1110.152 ◽

2015 ◽

Vol 1110 ◽

pp. 152-157

Author(s):

Kwon Hoo Kim ◽

Jun Ho Choi ◽

Kwang Il Hwang ◽

Han Sang Kwon ◽

Kazuto Okayasu ◽

...

Keyword(s):

High Temperature ◽

Magnesium Alloy ◽

Plane Strain ◽

Plane Strain Compression ◽

Temperature Deformation ◽

Deformation Condition ◽

Pole Density ◽

Texture Formation ◽

Az80 Magnesium Alloy ◽

Initial Texture

The behavior of texture formation during high-temperature deformation in AZ80 magnesium alloy is investigated. Three kinds of specimens were machined out from rolled plates. The plane strain compression tests were conducted at various deformation conditions – temperature, strain and strain rate. After compression deformation, texture measurement was carried out on the mid-plane section parallel to the compression direction by the Schulz reflection method and EBSD measurement. The maximum values of the flow stress are observed in all the cases at the true stress – true strain curve for three type of specimens. It is found that the main component of texture and the accumulation of pole density vary depending on deformation condition and initial texture. Six kinds of crystal orientation components have been observed after deformation in total. (0001)<10-10> is formed regardless of the initial texture.

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