Iron alloy wire and manufacturing method

Details Iron alloy wire and manufacturing method Iron alloy wire and manufacturing method

1998-03-02

2000-12-26

Speer, Timothy M.

Stock material or miscellaneous articles

All metal or with adjacent metals

Foil or filament smaller than 6 mils

428364, 428553, 428680, 148320, 148336, 148409, 148595, C22C 3808

Patent

active

061656275

ABSTRACT:
An INVAR.RTM. or iron nickel alloy or iron nickel cobalt alloy wire has an area ratio of carbide existing at the grain boundaries of the wire in the finished wire of at most 4%, or an average grain size in the transverse direction within a range of 1 to 5 .mu.m. Such a wire has a superior twisting property.

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patent: 5605582 (1997-02-01), Inoue et al.
patent: 5639317 (1997-06-01), Yahagi et al.
Advanced Materials & Process, May 1997, pp. 31-34, "Invar at 100 Years" by L. L. Harner.
Physics and Applications of Invar Alloys, Mazuren Company Ltd., Tokyo, 1978, pp. 521-528.

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