Analysis of anisotropy produced by packed-rolling in rapidly-quenched Nd-Fe-B powder

Journal Article · Fri Jan 01 04:00:00 EST 1993 · IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/TJMJ.1993.4565562· OSTI ID:5731443

Sakamoto, H; Mukai, T

The authors have applied a multi-pass packed-rolling technique to the production of anisotropic Nd-Fe-B-Cu powders from rapidly quenched ribbons. Analysis of the packed-rolling process shows that densification proceeds from the surface of the packed powder-compact and crystallographic alignment proceeds more rapidly at the center. Rolling to a reduction in ribbon thickness of greater than 80% results in a uniform material with a high (BH)[sub max] of up to 38 MGOe. The present paper discusses the alignment mechanism, taking into consideration the internal stress distribution inside the powder compact under rolling pressure.

• OSTI ID: 5731443
• Journal Information: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:1; ISSN 0882-4959; ISSN ITJJER
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
ANISOTROPY
BORON ALLOYS
COPPER ALLOYS
DATA
EXPERIMENTAL DATA
FABRICATION
INFORMATION
IRON ALLOYS
MATERIALS WORKING
NEODYMIUM ALLOYS
NUMERICAL DATA
POWDERS
RARE EARTH ALLOYS
ROLLING