Hot-working behavior of cast Pr-Fe-B magnets

Conference · Fri Sep 01 04:00:00 EDT 1989 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA)

OSTI ID:5304667

Shimoda, T; Akioka, K; Kobayashi, O; Yamagami, T ^[1]; Ohki, T; Miyagawa, M; Yuri, T ^[2]

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1. Research and Development Div., SEIKO EPSON Corp., 3-3-5 Owa, Suwa-shi, Nagano-ken 392 (JP)
2. Materials Research Lab., Kobe Steel, Ltd., 3-18, Wakinohamacho 1-Chome, Chuo-ku, Kobe 651 (JP)

The hot-working behavior of cast Pr-Fe-B magnets is investigated. The hot-working is done both at a low strain rate (hot-pressing) and a high strain rate (hot-rolling). Magnetic alignment induced by the hot-working is found to be closely related to the macrostructure of the cast ingots and the direction of principal stress. The appropriate structure is a columnar structure. The c-axis of the Pr2Fe14B phase is lying in the plane perpendicular to the growth direction of the dendrites. The principal stress during working should be given perpendicular to the growth direction.

• OSTI ID: 5304667
• Report Number(s): CONF-890309--
• Conference Information: Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA) Journal Volume: 25:5
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
FABRICATION
HOT PRESSING
HOT WORKING
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
MATERIALS WORKING
MELTING
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRASEODYMIUM ALLOYS
PRESSING
RARE EARTH ALLOYS
STRAINS