Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing

Koji Neishi; Toru Uchida; Nobuyuki Ashie; Atsushi Yamauchi; Katsuaki Nakamura; Zenji Horita; Terence G. Langdon

Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing

Koji Neishi, Toru Uchida, Nobuyuki Ashie, Atsushi Yamauchi, Katsuaki Nakamura, Zenji Horita, Terence G. Langdon

Research output: Contribution to journal › Conference article › peer-review

Abstract

Equal-channel angular pressing (ECAP) was conducted using dies having two different channel angles, Φ=90° and 135°, for grain refinement of a Cu-38%Zn-3%Sn alloy. Orientation image microscopy (OIM) was used for microstructural observations and phase identification including the analysis of misorientation angles. Tensile testing and upset testing were carried out at elevated temperatures to examine the superplastic ductility and the formability of the alloy. The grain refinement was achieved effectively by conducting the ECAP at a temperature where a phase transformation occurs. The use of a die having Φ=90° led to a finer grain size with a larger fraction of high angle grain boundaries than using a die having Φ=135°.

Original language	English
Pages (from-to)	483-488
Number of pages	6
Journal	Materials Science Forum
Volume	447-448
Publication status	Published - Jan 1 2004
Event	Superplasticity in Advanced Materials: 8th International Conference on Superplasticity in Advanced Materials, ICSAM 2003 - Oxford, United Kingdom Duration: Jul 28 2003 → Jul 30 2003

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing",

abstract = "Equal-channel angular pressing (ECAP) was conducted using dies having two different channel angles, Φ=90° and 135°, for grain refinement of a Cu-38%Zn-3%Sn alloy. Orientation image microscopy (OIM) was used for microstructural observations and phase identification including the analysis of misorientation angles. Tensile testing and upset testing were carried out at elevated temperatures to examine the superplastic ductility and the formability of the alloy. The grain refinement was achieved effectively by conducting the ECAP at a temperature where a phase transformation occurs. The use of a die having Φ=90° led to a finer grain size with a larger fraction of high angle grain boundaries than using a die having Φ=135°.",

author = "Koji Neishi and Toru Uchida and Nobuyuki Ashie and Atsushi Yamauchi and Katsuaki Nakamura and Zenji Horita and Langdon, {Terence G.}",

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journal = "Materials Science Forum",

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T1 - Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing

AU - Neishi, Koji

AU - Uchida, Toru

AU - Ashie, Nobuyuki

AU - Yamauchi, Atsushi

AU - Nakamura, Katsuaki

AU - Horita, Zenji

AU - Langdon, Terence G.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - Equal-channel angular pressing (ECAP) was conducted using dies having two different channel angles, Φ=90° and 135°, for grain refinement of a Cu-38%Zn-3%Sn alloy. Orientation image microscopy (OIM) was used for microstructural observations and phase identification including the analysis of misorientation angles. Tensile testing and upset testing were carried out at elevated temperatures to examine the superplastic ductility and the formability of the alloy. The grain refinement was achieved effectively by conducting the ECAP at a temperature where a phase transformation occurs. The use of a die having Φ=90° led to a finer grain size with a larger fraction of high angle grain boundaries than using a die having Φ=135°.

AB - Equal-channel angular pressing (ECAP) was conducted using dies having two different channel angles, Φ=90° and 135°, for grain refinement of a Cu-38%Zn-3%Sn alloy. Orientation image microscopy (OIM) was used for microstructural observations and phase identification including the analysis of misorientation angles. Tensile testing and upset testing were carried out at elevated temperatures to examine the superplastic ductility and the formability of the alloy. The grain refinement was achieved effectively by conducting the ECAP at a temperature where a phase transformation occurs. The use of a die having Φ=90° led to a finer grain size with a larger fraction of high angle grain boundaries than using a die having Φ=135°.

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AN - SCOPUS:3142713912

SN - 0255-5476

VL - 447-448

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JF - Materials Science Forum

T2 - Superplasticity in Advanced Materials: 8th International Conference on Superplasticity in Advanced Materials, ICSAM 2003

Y2 - 28 July 2003 through 30 July 2003

ER -

Superplastlcity of a Cu-Zn-Sn alloy processed by equal-channel angular pressing

Abstract

All Science Journal Classification (ASJC) codes

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