Improvements of the magnetic properties of equiaxed FE-CR-CO-MO hard magnets by two-step thermomagnetic treatment

S. Sugimoto; M. Okada; M. Homma; J. Honda; Y. Ohtani

doi:10.1109/TMAG.1987.1065254

Improvements of the magnetic properties of equiaxed FE-CR-CO-MO hard magnets by two-step thermomagnetic treatment

S. Sugimoto, M. Okada, M. Homma, J. Honda, Y. Ohtani

ENG - Materials Science

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

29 Citations (Scopus)

Abstract

Present works describe the developments of the equiaxed Fe-Cr-Co permanent magnets with high coercivity and high energy products. The studied alloy compositions are Fe-(26-32)wt%Cr-15wt%Co-3wt%Mo. The magnetic properties of the alloys have been enhanced by the two-step thermomagnetic treatment (two-step TMT) and by prolonging all of the heat-treatment time. The energy products above 43 kJm-3 (5.4MGOe) are obtained for almost all of the studied compositional alloys. Fe-30%Cr-15%Co-3%Mo alloy gives good magnetic properties as iHc=76.8 kAm-1 (960 Oe), (BH)max=49.6 kJm-3 (6.2 MGOe). The highest coercivity achieved with Fe-32%Cr-lS%Co-3%Mo alloy is 80.8 kAm-l (1010 Oe).

Original language	English
Pages (from-to)	3193-3195
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	23
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.1987.1065254
Publication status	Published - 1987 Sept

Access to Document

10.1109/TMAG.1987.1065254

Cite this

@article{227bb25a962c48db9c0e6e671ebaf56b,

title = "Improvements of the magnetic properties of equiaxed FE-CR-CO-MO hard magnets by two-step thermomagnetic treatment",

abstract = "Present works describe the developments of the equiaxed Fe-Cr-Co permanent magnets with high coercivity and high energy products. The studied alloy compositions are Fe-(26-32)wt%Cr-15wt%Co-3wt%Mo. The magnetic properties of the alloys have been enhanced by the two-step thermomagnetic treatment (two-step TMT) and by prolonging all of the heat-treatment time. The energy products above 43 kJm-3 (5.4MGOe) are obtained for almost all of the studied compositional alloys. Fe-30%Cr-15%Co-3%Mo alloy gives good magnetic properties as iHc=76.8 kAm-1 (960 Oe), (BH)max=49.6 kJm-3 (6.2 MGOe). The highest coercivity achieved with Fe-32%Cr-lS%Co-3%Mo alloy is 80.8 kAm-l (1010 Oe).",

author = "S. Sugimoto and M. Okada and M. Homma and J. Honda and Y. Ohtani",

year = "1987",

month = sep,

doi = "10.1109/TMAG.1987.1065254",

language = "English",

volume = "23",

pages = "3193--3195",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5",

}

TY - JOUR

T1 - Improvements of the magnetic properties of equiaxed FE-CR-CO-MO hard magnets by two-step thermomagnetic treatment

AU - Sugimoto, S.

AU - Okada, M.

AU - Homma, M.

AU - Honda, J.

AU - Ohtani, Y.

PY - 1987/9

Y1 - 1987/9

N2 - Present works describe the developments of the equiaxed Fe-Cr-Co permanent magnets with high coercivity and high energy products. The studied alloy compositions are Fe-(26-32)wt%Cr-15wt%Co-3wt%Mo. The magnetic properties of the alloys have been enhanced by the two-step thermomagnetic treatment (two-step TMT) and by prolonging all of the heat-treatment time. The energy products above 43 kJm-3 (5.4MGOe) are obtained for almost all of the studied compositional alloys. Fe-30%Cr-15%Co-3%Mo alloy gives good magnetic properties as iHc=76.8 kAm-1 (960 Oe), (BH)max=49.6 kJm-3 (6.2 MGOe). The highest coercivity achieved with Fe-32%Cr-lS%Co-3%Mo alloy is 80.8 kAm-l (1010 Oe).

AB - Present works describe the developments of the equiaxed Fe-Cr-Co permanent magnets with high coercivity and high energy products. The studied alloy compositions are Fe-(26-32)wt%Cr-15wt%Co-3wt%Mo. The magnetic properties of the alloys have been enhanced by the two-step thermomagnetic treatment (two-step TMT) and by prolonging all of the heat-treatment time. The energy products above 43 kJm-3 (5.4MGOe) are obtained for almost all of the studied compositional alloys. Fe-30%Cr-15%Co-3%Mo alloy gives good magnetic properties as iHc=76.8 kAm-1 (960 Oe), (BH)max=49.6 kJm-3 (6.2 MGOe). The highest coercivity achieved with Fe-32%Cr-lS%Co-3%Mo alloy is 80.8 kAm-l (1010 Oe).

UR - http://www.scopus.com/inward/record.url?scp=0023418222&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023418222&partnerID=8YFLogxK

U2 - 10.1109/TMAG.1987.1065254

DO - 10.1109/TMAG.1987.1065254

M3 - Article

AN - SCOPUS:0023418222

SN - 0018-9464

VL - 23

SP - 3193

EP - 3195

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5

ER -

Improvements of the magnetic properties of equiaxed FE-CR-CO-MO hard magnets by two-step thermomagnetic treatment

Abstract

Access to Document

Other files and links

Fingerprint

Cite this