Published October 2008 | Version v1
Journal article Metadata-only

Magnetic losses evolution of a semi-processed steel during forced aging treatments

Creators

  • 1. Usiminas Research Center, BR 381 S/N, Ipatinga, MG 35160-900 (Brazil)
  • 2. Department of Metallurgical and Mat. Engineering, University of Sao Paulo, Av. Prof. Mello Moraes 2463, 05508901 Sao Paulo (Brazil)
  • 3. Federal University of Minas Gerais, Rua Espirito Santo, 35, sala 206, 30160-030 Belo Horizonte, MG (Brazil)

Description

An ultra-low carbon steel (30 ppm after decarburization) containing Al and Si was aged for distinct soaking times at 210 deg. C. The core loss increased continuously until around 24 h. After that, only slight changes were verified. It was found that only the hysteresis loss component changed during the aging treatment. By internal friction test and transmission electron microscopy it was seen that carbon precipitation caused the magnetic aging. By scanning electron microscopy it could be concluded that the increase of aging index was attributed to the high number of carbides larger than 0.1 μm

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jmmm.2008.04.023

Additional details

Identifiers

DOI
10.1016/j.jmmm.2008.04.023;
PII
S0304-8853(08)00456-3;

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
320
Journal Issue
20
Journal Page Range
p. e631-e634
ISSN
0304-8853
CODEN
JMMMDC

Conference

Title
18. international symposium on soft magnetic materials
Dates
2-5 Sep 2007
Place
Cardiff (United Kingdom)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40009349
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AGING; CARBIDES; CARBON; CARBON STEELS; DECARBURIZATION; HYSTERESIS; INTERNAL FRICTION; LOSSES; PRECIPITATION; SCANNING ELECTRON MICROSCOPY; STRESSES; TEMPERATURE RANGE 0400-1000 K; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CARBON COMPOUNDS; CHEMICAL REACTIONS; ELECTRON MICROSCOPY; ELEMENTS; FRICTION; IRON ALLOYS; IRON BASE ALLOYS; MICROSCOPY; NONMETALS; SEPARATION PROCESSES; STEELS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.