Influence of pressing speed on microstructural development in equal-channel angular pressing

Patrick B. Berbon; Minoru Furukawa; Zenji Horita; Minoru Nemoto; Terence G. Langdon

doi:10.1007/s11661-999-0009-9

Influence of pressing speed on microstructural development in equal-channel angular pressing

Patrick B. Berbon, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Terence G. Langdon

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

160 Citations (Scopus)

Abstract

The influence of pressing speed in equal-channel angular (ECA) pressing was investigated using samples of pure Al and an Al-1 pct Mg alloy and a range of pressing speeds from approx. 10^-2 to approx. 10 mm s^-1. The results show that the speed of pressing has no significant influence on the equilibrium grain size, at least over the range used in these experiments. Thus, the equilibrium grain sizes were approx. 1.2 μm for pure Al and approx. 0.5 μm for the Al-1 pct Mg alloy for all pressing conditions. However, it is shown that the nature of the microstructure is dependent on the pressing speed, because recovery occurs more easily at the slower speeds, so that the microstructure is then more equilibrated. There is also indirect evidence for the advent of frictional effects when the cross-sectional dimensions of the samples are at or below approx. 5 mm.

Original language	English
Pages (from-to)	1989-1997
Number of pages	9
Journal	Unknown Journal
Volume	30
Issue number	8
DOIs	https://doi.org/10.1007/s11661-999-0009-9
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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10.1007/s11661-999-0009-9

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@article{8b83df58241f46f3beaf58048b326343,

title = "Influence of pressing speed on microstructural development in equal-channel angular pressing",

abstract = "The influence of pressing speed in equal-channel angular (ECA) pressing was investigated using samples of pure Al and an Al-1 pct Mg alloy and a range of pressing speeds from approx. 10-2 to approx. 10 mm s-1. The results show that the speed of pressing has no significant influence on the equilibrium grain size, at least over the range used in these experiments. Thus, the equilibrium grain sizes were approx. 1.2 μm for pure Al and approx. 0.5 μm for the Al-1 pct Mg alloy for all pressing conditions. However, it is shown that the nature of the microstructure is dependent on the pressing speed, because recovery occurs more easily at the slower speeds, so that the microstructure is then more equilibrated. There is also indirect evidence for the advent of frictional effects when the cross-sectional dimensions of the samples are at or below approx. 5 mm.",

author = "Berbon, {Patrick B.} and Minoru Furukawa and Zenji Horita and Minoru Nemoto and Langdon, {Terence G.}",

note = "Funding Information: This work was supported in part by the Light Metals Educational Foundation of Japan; in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan; in part by the Japan Society for the Promotion of Science; and in part by the National Science Foundation of the United States under Grant Nos. DMR-9625969 and INT-9602919.",

year = "1999",

doi = "10.1007/s11661-999-0009-9",

language = "English",

volume = "30",

pages = "1989--1997",

journal = "Unknown Journal",

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T1 - Influence of pressing speed on microstructural development in equal-channel angular pressing

AU - Berbon, Patrick B.

AU - Furukawa, Minoru

AU - Horita, Zenji

AU - Nemoto, Minoru

AU - Langdon, Terence G.

N1 - Funding Information: This work was supported in part by the Light Metals Educational Foundation of Japan; in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan; in part by the Japan Society for the Promotion of Science; and in part by the National Science Foundation of the United States under Grant Nos. DMR-9625969 and INT-9602919.

PY - 1999

Y1 - 1999

N2 - The influence of pressing speed in equal-channel angular (ECA) pressing was investigated using samples of pure Al and an Al-1 pct Mg alloy and a range of pressing speeds from approx. 10-2 to approx. 10 mm s-1. The results show that the speed of pressing has no significant influence on the equilibrium grain size, at least over the range used in these experiments. Thus, the equilibrium grain sizes were approx. 1.2 μm for pure Al and approx. 0.5 μm for the Al-1 pct Mg alloy for all pressing conditions. However, it is shown that the nature of the microstructure is dependent on the pressing speed, because recovery occurs more easily at the slower speeds, so that the microstructure is then more equilibrated. There is also indirect evidence for the advent of frictional effects when the cross-sectional dimensions of the samples are at or below approx. 5 mm.

AB - The influence of pressing speed in equal-channel angular (ECA) pressing was investigated using samples of pure Al and an Al-1 pct Mg alloy and a range of pressing speeds from approx. 10-2 to approx. 10 mm s-1. The results show that the speed of pressing has no significant influence on the equilibrium grain size, at least over the range used in these experiments. Thus, the equilibrium grain sizes were approx. 1.2 μm for pure Al and approx. 0.5 μm for the Al-1 pct Mg alloy for all pressing conditions. However, it is shown that the nature of the microstructure is dependent on the pressing speed, because recovery occurs more easily at the slower speeds, so that the microstructure is then more equilibrated. There is also indirect evidence for the advent of frictional effects when the cross-sectional dimensions of the samples are at or below approx. 5 mm.

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DO - 10.1007/s11661-999-0009-9

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SN - 1040-6182

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SP - 1989

EP - 1997

JO - Unknown Journal

JF - Unknown Journal

IS - 8

ER -

Influence of pressing speed on microstructural development in equal-channel angular pressing

Abstract

All Science Journal Classification (ASJC) codes

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