Title:
Fe-Cr ALLOY, METHOD FOR PRODUCING SAME, AND RESISTANCE HEATING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/150762
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an Fe-Cr alloy that has high electrical resistivity, exhibits superior oxidation resistance at high temperatures exceeding 1000 °C, and is suitable for use as a resistance heating element, as well as an advantageous method for producing the same. The Fe-Cr alloy according to the present invention has a component composition in which the Si content and the Al content are simultaneously increased, and the Si content, the Al content, and the Cr content of the component composition satisfy the relationship in the following formula (1). In addition, the Fe-Cr alloy is produced by subjecting a plate material having an Si content of no more than 1.5 mass% to siliconization treatment via a thermal CVD method to obtain an Si content of 1.5 mass% to 10.0 mass%, inclusive. (1) 14.0 ≤ %Si + 1.15 x %Al + 0.35 x %Cr
Inventors:
MIZUTANI AKITO (JP)
HIRATANI TATSUHIKO (JP)
FUJISAWA MITSUYUKI (JP)
HIRATANI TATSUHIKO (JP)
FUJISAWA MITSUYUKI (JP)
Application Number:
PCT/JP2018/044789
Publication Date:
August 08, 2019
Filing Date:
December 05, 2018
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/00; B21B1/40; B21B3/02; C21D9/46; C22C38/34; C22C38/54; H05B3/12
Foreign References:
| JPH1072645A | 1998-03-17 | |||
| JPH04308004A | 1992-10-30 | |||
| JPH06220587A | 1994-08-09 | |||
| JPH06170498A | 1994-06-21 | |||
| JPH05331552A | 1993-12-14 | |||
| JPH1161348A | 1999-03-05 | |||
| JPS59193247A | 1984-11-01 | |||
| JPH04235255A | 1992-08-24 | |||
| JP2013159837A | 2013-08-19 | |||
| JP2016094662A | 2016-05-26 |
Other References:
See also references of EP 3748026A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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