FERRITIC STAINLESS-STEEL FOIL AND PROCESS FOR PRODUCING SAME

Title:

FERRITIC STAINLESS-STEEL FOIL AND PROCESS FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2015/155920

Kind Code:

A1

Abstract:

Provided is a ferritic stainless-steel foil having an excellent whisker-producing ability. The ferritic stainless-steel foil having an excellent whisker-producing ability has a composition which contains, in terms of mass%, up to 0.050% C, up to 2.00% Si, up to 0.50% Mn, up to 0.010% S, up to 0.050% P, 15.0-30.0% Cr, 2.5-6.5% Al, and up to 0.050% N and further contains at least one element selected from among 0.01-0.50% Ti, 0.01-0.20% Nb, 0.01-0.20% V, 0.005-0.200% Zr, and 0.005-0.200% Hf, with the remainder comprising Fe and unavoidable impurities. The foil has a surface in which the areal proportion of {111} crystal grains (crystal grains in which the difference between the {111} plane and the direction perpendicular to the foil surface is within ±15°) is 50% or higher. The foil surface has an oxide layer having a thickness of 0.1 µm or less.

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Inventors:

MIZUTANI AKITO (JP)
FUJISAWA MITSUYUKI (JP)

Application Number:

PCT/JP2015/000910

Publication Date:

October 15, 2015

Filing Date:

February 24, 2015

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C22C38/00; C21D9/46; C22C38/34; C22C38/50

Domestic Patent References:

WO2002002836A1

2002-01-10

Foreign References:

JP2006009119A	2006-01-12
JP2004269915A	2004-09-30
JPH07316746A	1995-12-05
JPH0543984A	1993-02-23
JP2003105506A	2003-04-09
JP2011063833A	2011-03-31
JPS58177437A	1983-10-18

Other References: