Magnetic evaluation of the hardening and softening of thermally aged iron–copper alloys

Research output: Contribution to journalArticlepeer-review

Standard

Magnetic evaluation of the hardening and softening of thermally aged iron–copper alloys. / Vandenbossche, L.P.; Konstantinovic, Milan; Al Mazouzi, Abderrahim; Dupre, L.R.; Scibetta, Marc (Peer reviewer).

In: Journal of Physics D: Applied Physics, Vol. 40, No. 14, 06.2007, p. 4114-4119.

Research output: Contribution to journalArticlepeer-review

Author

Vandenbossche, L.P. ; Konstantinovic, Milan ; Al Mazouzi, Abderrahim ; Dupre, L.R. ; Scibetta, Marc. / Magnetic evaluation of the hardening and softening of thermally aged iron–copper alloys. In: Journal of Physics D: Applied Physics. 2007 ; Vol. 40, No. 14. pp. 4114-4119.

Bibtex - Download

@article{95bc1a82479144e7bc58b85aaf3ca02d,
title = "Magnetic evaluation of the hardening and softening of thermally aged iron–copper alloys",
abstract = "We evaluated the variations of the magnetic hysteretic behaviour of Fe–1wt%Cu model alloy samples due to thermal aging and over-aging. In these alloys, the formation and growth of Cu-precipitates during the thermal aging process results in mechanical hardening, whereas for aging times higher than a certain critical value, mechanical softening occurs. Magnetic hysteretic properties such as permeability, remanence, peak value and width of the local interaction field distribution, which is related to the Preisach model, are measured as a function of various Cu-precipitation stages obtained by time dependent heat treatments at 773K (500 ◦C).We found that all magnetic parameters exhibit an extremum value for the peak hardening sample. Furthermore, the variation of permeability, remanence, and the peak value of the local interaction field distribution mimics the behaviour of the reciprocal value of the yield stress as a function of aging time. These results suggest that the magnetic domain wall movement is hindered mainly by Cu-precipitates upon thermal aging. The peak hardening values of the investigated magnetic parameters change by approximately 50% when compared with the initial values. This pronounced sensitivity indicates the potential of magnetic non-destructive evaluation for the assessment of the hardening and softening phenomena induced by Cu-precipitation.",
keywords = "magnetisation, sofftening, Fe-Cu alloy",
author = "L.P. Vandenbossche and Milan Konstantinovic and {Al Mazouzi}, Abderrahim and L.R. Dupre and Marc Scibetta",
note = "Score = 10",
year = "2007",
month = jun,
doi = "10.1088/0022-3727/40/14/003",
language = "English",
volume = "40",
pages = "4114--4119",
journal = "Journal of Physics D: Applied Physics",
issn = "0022-3727",
publisher = "IOP - IOP Publishing",
number = "14",

}

RIS - Download

TY - JOUR

T1 - Magnetic evaluation of the hardening and softening of thermally aged iron–copper alloys

AU - Vandenbossche, L.P.

AU - Konstantinovic, Milan

AU - Al Mazouzi, Abderrahim

AU - Dupre, L.R.

A2 - Scibetta, Marc

N1 - Score = 10

PY - 2007/6

Y1 - 2007/6

N2 - We evaluated the variations of the magnetic hysteretic behaviour of Fe–1wt%Cu model alloy samples due to thermal aging and over-aging. In these alloys, the formation and growth of Cu-precipitates during the thermal aging process results in mechanical hardening, whereas for aging times higher than a certain critical value, mechanical softening occurs. Magnetic hysteretic properties such as permeability, remanence, peak value and width of the local interaction field distribution, which is related to the Preisach model, are measured as a function of various Cu-precipitation stages obtained by time dependent heat treatments at 773K (500 ◦C).We found that all magnetic parameters exhibit an extremum value for the peak hardening sample. Furthermore, the variation of permeability, remanence, and the peak value of the local interaction field distribution mimics the behaviour of the reciprocal value of the yield stress as a function of aging time. These results suggest that the magnetic domain wall movement is hindered mainly by Cu-precipitates upon thermal aging. The peak hardening values of the investigated magnetic parameters change by approximately 50% when compared with the initial values. This pronounced sensitivity indicates the potential of magnetic non-destructive evaluation for the assessment of the hardening and softening phenomena induced by Cu-precipitation.

AB - We evaluated the variations of the magnetic hysteretic behaviour of Fe–1wt%Cu model alloy samples due to thermal aging and over-aging. In these alloys, the formation and growth of Cu-precipitates during the thermal aging process results in mechanical hardening, whereas for aging times higher than a certain critical value, mechanical softening occurs. Magnetic hysteretic properties such as permeability, remanence, peak value and width of the local interaction field distribution, which is related to the Preisach model, are measured as a function of various Cu-precipitation stages obtained by time dependent heat treatments at 773K (500 ◦C).We found that all magnetic parameters exhibit an extremum value for the peak hardening sample. Furthermore, the variation of permeability, remanence, and the peak value of the local interaction field distribution mimics the behaviour of the reciprocal value of the yield stress as a function of aging time. These results suggest that the magnetic domain wall movement is hindered mainly by Cu-precipitates upon thermal aging. The peak hardening values of the investigated magnetic parameters change by approximately 50% when compared with the initial values. This pronounced sensitivity indicates the potential of magnetic non-destructive evaluation for the assessment of the hardening and softening phenomena induced by Cu-precipitation.

KW - magnetisation

KW - sofftening

KW - Fe-Cu alloy

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_88171

UR - http://knowledgecentre.sckcen.be/so2/bibref/4943

U2 - 10.1088/0022-3727/40/14/003

DO - 10.1088/0022-3727/40/14/003

M3 - Article

VL - 40

SP - 4114

EP - 4119

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

IS - 14

ER -

ID: 192558