Achieving superplasticity of ultrafine-grained rod-like AZ61 alloy using high-pressure sliding

Takahiro Masuda; Kazushige Fujimitsu; Yoichi Takizawa; Zenji Horita

doi:10.2320/jinstmet.J2015046

Achieving superplasticity of ultrafine-grained rod-like AZ61 alloy using high-pressure sliding

Takahiro Masuda, Kazushige Fujimitsu, Yoichi Takizawa, Zenji Horita

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Recent study demonstrated that processing through High-Pressure Sliding (HPS) is effective for grain refinement of a rodlike A2024 aluminum alloy. In this study, the HPS processing was applied to an AZ61 magnesium alloy. To achieve homogeneous grain refinement throughout the cross section of the rods, the samples were rotated around the longitudinal axis of the rod every after HPS processing. Microstructural observations revealed that the grain size was refined to 450 nm. Tensile tests showed that the samples exhibited excellent superplasticity with a maximum elongation of 1140% at a testing temperature of 473 K and at an initial strain rate of 1.0 × 10^-3 s^-1, giving a strain rate sensitivity of 0.4.

Original language	English
Pages (from-to)	128-133
Number of pages	6
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	80
Issue number	2
DOIs	https://doi.org/10.2320/jinstmet.J2015046
Publication status	Published - 2016

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Achieving superplasticity of ultrafine-grained rod-like AZ61 alloy using high-pressure sliding",

abstract = "Recent study demonstrated that processing through High-Pressure Sliding (HPS) is effective for grain refinement of a rodlike A2024 aluminum alloy. In this study, the HPS processing was applied to an AZ61 magnesium alloy. To achieve homogeneous grain refinement throughout the cross section of the rods, the samples were rotated around the longitudinal axis of the rod every after HPS processing. Microstructural observations revealed that the grain size was refined to 450 nm. Tensile tests showed that the samples exhibited excellent superplasticity with a maximum elongation of 1140% at a testing temperature of 473 K and at an initial strain rate of 1.0 × 10-3 s-1, giving a strain rate sensitivity of 0.4.",

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AU - Masuda, Takahiro

AU - Fujimitsu, Kazushige

AU - Takizawa, Yoichi

AU - Horita, Zenji

PY - 2016

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AB - Recent study demonstrated that processing through High-Pressure Sliding (HPS) is effective for grain refinement of a rodlike A2024 aluminum alloy. In this study, the HPS processing was applied to an AZ61 magnesium alloy. To achieve homogeneous grain refinement throughout the cross section of the rods, the samples were rotated around the longitudinal axis of the rod every after HPS processing. Microstructural observations revealed that the grain size was refined to 450 nm. Tensile tests showed that the samples exhibited excellent superplasticity with a maximum elongation of 1140% at a testing temperature of 473 K and at an initial strain rate of 1.0 × 10-3 s-1, giving a strain rate sensitivity of 0.4.

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Achieving superplasticity of ultrafine-grained rod-like AZ61 alloy using high-pressure sliding

Abstract

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