HEATER MATERIAL EXCELLENT IN OXIDATION RESISTANCE

HEATER MATERIAL EXCELLENT IN OXIDATION RESISTANCE

PURPOSE:To obtain a material extremely excellent in sagging resistance and oxidation resistance at high temp. and extremely suitable for heater material or member for high temp. use. CONSTITUTION:This material is composed of a sintered compact of an alloy powder having a composition consisting of, b...

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Hauptverfasser: TOMITA KAZUYUKI, NOTOMI KANJI
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator TOMITA KAZUYUKI
NOTOMI KANJI
description PURPOSE:To obtain a material extremely excellent in sagging resistance and oxidation resistance at high temp. and extremely suitable for heater material or member for high temp. use. CONSTITUTION:This material is composed of a sintered compact of an alloy powder having a composition consisting of, by weight, 20-35% Cr, 4-12% Al,
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CONSTITUTION:This material is composed of a sintered compact of an alloy powder having a composition consisting of, by weight, 20-35% Cr, 4-12% Al, &lt;=0.10% oxygen, 0.05-0.20% nitrogen, and the balance Fe with inevitable impurities. The heater material excellent in oxidation resistance is formed by dispersing, by means of plastic working, the aluminum oxide (Al2O3) temporarily formed on the surface of the above alloy powder into the matrix of the alloy powder. Further, one or more elements selected from Zr, Ti, and Nb can be incorporated into the sintered compact of the alloy powder by &lt;=1wt.%. Moreover, in order to form the aluminum oxide film, treatment is done at high temp. in a hydrogen atmosphere containing trace amounts of oxygen.</description><edition>5</edition><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1994</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19940510&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06128705A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19940510&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06128705A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TOMITA KAZUYUKI</creatorcontrib><creatorcontrib>NOTOMI KANJI</creatorcontrib><title>HEATER MATERIAL EXCELLENT IN OXIDATION RESISTANCE</title><description>PURPOSE:To obtain a material extremely excellent in sagging resistance and oxidation resistance at high temp. and extremely suitable for heater material or member for high temp. use. CONSTITUTION:This material is composed of a sintered compact of an alloy powder having a composition consisting of, by weight, 20-35% Cr, 4-12% Al, &lt;=0.10% oxygen, 0.05-0.20% nitrogen, and the balance Fe with inevitable impurities. The heater material excellent in oxidation resistance is formed by dispersing, by means of plastic working, the aluminum oxide (Al2O3) temporarily formed on the surface of the above alloy powder into the matrix of the alloy powder. Further, one or more elements selected from Zr, Ti, and Nb can be incorporated into the sintered compact of the alloy powder by &lt;=1wt.%. 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CONSTITUTION:This material is composed of a sintered compact of an alloy powder having a composition consisting of, by weight, 20-35% Cr, 4-12% Al, &lt;=0.10% oxygen, 0.05-0.20% nitrogen, and the balance Fe with inevitable impurities. The heater material excellent in oxidation resistance is formed by dispersing, by means of plastic working, the aluminum oxide (Al2O3) temporarily formed on the surface of the above alloy powder into the matrix of the alloy powder. Further, one or more elements selected from Zr, Ti, and Nb can be incorporated into the sintered compact of the alloy powder by &lt;=1wt.%. Moreover, in order to form the aluminum oxide film, treatment is done at high temp. in a hydrogen atmosphere containing trace amounts of oxygen.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record>
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subjects ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title HEATER MATERIAL EXCELLENT IN OXIDATION RESISTANCE
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