Fracture toughness and internal friction of GlidCop®Al-25 alloy

Seppo Tähtinen; M. Pyykkönen; S. Smuk; H. Hänninen; Y. Jagodzinski; O. Tarasenko

Fracture toughness and internal friction of GlidCop®Al-25 alloy

Seppo Tähtinen, M. Pyykkönen, S. Smuk, H. Hänninen, Y. Jagodzinski, O. Tarasenko

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

Abstract

Fracture toughness was found to decrease rapidly with increasing temperature in dispersionstrengthened GlidCop®Al-25 copper alloy both in the as-supplied condition and neutron irradiated to a dose of 0.3 dpa. Internal friction study revealed two-component peak. Grain-boundary sliding was recognized to be responsible for the low-temperature component of the peak, which disappears after irradiation and restores after the heating above 900 K. This points out that the changes in the particle - grain boundary interaction, apparently, due to the defects at the interfaces produced by irradiation are responsible for the drop of fracture toughness in A125 alloy.

Original language	English
Title of host publication	Microstructural Processes in Irradiated Materials
Pages	573-578
Publication status	Published - 1999
MoE publication type	A4 Article in a conference publication
Event	1998 MRS Fall Meeting: Symposium on Microstructural Processes in Irradiated Materials - Boston, United States Duration: 30 Nov 1998 → 2 Dec 1998

Conference

Conference	1998 MRS Fall Meeting
Country	United States
City	Boston
Period	30/11/98 → 2/12/98

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@inproceedings{756d9517bbd848c3bf317cc6e763648f,

title = "Fracture toughness and internal friction of GlidCop{\textregistered}Al-25 alloy",

abstract = "Fracture toughness was found to decrease rapidly with increasing temperature in dispersionstrengthened GlidCop{\textregistered}Al-25 copper alloy both in the as-supplied condition and neutron irradiated to a dose of 0.3 dpa. Internal friction study revealed two-component peak. Grain-boundary sliding was recognized to be responsible for the low-temperature component of the peak, which disappears after irradiation and restores after the heating above 900 K. This points out that the changes in the particle - grain boundary interaction, apparently, due to the defects at the interfaces produced by irradiation are responsible for the drop of fracture toughness in A125 alloy.",

author = "Seppo T{\"a}htinen and M. Pyykk{\"o}nen and S. Smuk and H. H{\"a}nninen and Y. Jagodzinski and O. Tarasenko",

year = "1999",

language = "English",

isbn = "1-55899-446-7",

pages = "573--578",

booktitle = "Microstructural Processes in Irradiated Materials",

note = "1998 MRS Fall Meeting : Symposium on Microstructural Processes in Irradiated Materials ; Conference date: 30-11-1998 Through 02-12-1998",

}

TY - GEN

T1 - Fracture toughness and internal friction of GlidCop®Al-25 alloy

AU - Tähtinen, Seppo

AU - Pyykkönen, M.

AU - Smuk, S.

AU - Hänninen, H.

AU - Jagodzinski, Y.

AU - Tarasenko, O.

PY - 1999

Y1 - 1999

N2 - Fracture toughness was found to decrease rapidly with increasing temperature in dispersionstrengthened GlidCop®Al-25 copper alloy both in the as-supplied condition and neutron irradiated to a dose of 0.3 dpa. Internal friction study revealed two-component peak. Grain-boundary sliding was recognized to be responsible for the low-temperature component of the peak, which disappears after irradiation and restores after the heating above 900 K. This points out that the changes in the particle - grain boundary interaction, apparently, due to the defects at the interfaces produced by irradiation are responsible for the drop of fracture toughness in A125 alloy.

AB - Fracture toughness was found to decrease rapidly with increasing temperature in dispersionstrengthened GlidCop®Al-25 copper alloy both in the as-supplied condition and neutron irradiated to a dose of 0.3 dpa. Internal friction study revealed two-component peak. Grain-boundary sliding was recognized to be responsible for the low-temperature component of the peak, which disappears after irradiation and restores after the heating above 900 K. This points out that the changes in the particle - grain boundary interaction, apparently, due to the defects at the interfaces produced by irradiation are responsible for the drop of fracture toughness in A125 alloy.

M3 - Conference article in proceedings

SN - 1-55899-446-7

SP - 573

EP - 578

BT - Microstructural Processes in Irradiated Materials

T2 - 1998 MRS Fall Meeting

Y2 - 30 November 1998 through 2 December 1998

ER -