Heat treatment for nickel-base superalloys
The present invention is directed to a heat treatment for nickel-base superalloys used to make single crystal parts and components for gas turbine engines. The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to ach...
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| creator | DAROLIA RAMGOPAL WUKUSICK CARL S BUCHAKJIAN, JR. LEO |
| description | The present invention is directed to a heat treatment for nickel-base superalloys used to make single crystal parts and components for gas turbine engines. The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to achieve solution of at least 95% of the gamma ' phase, preferably 2385 DEG -2395 DEG F., for 2 hours; cooling to 2000 DEG F. at 100 DEG F./min minimum, furnace cooling to 1200 DEG F. in 60 min. or less and thereafter cooling to room temperature; heating to 2050 DEG +/-25 DEG F. for 4 hours; furnace cooling to below 1200 DEG F. in 6 min. or less and thereafter to room temperature; and heating to 1650 DEG +/-25 DEG F. for 4 hours and thereafter furnace cooling to room temperature. |
| format | Patent |
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The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to achieve solution of at least 95% of the gamma ' phase, preferably 2385 DEG -2395 DEG F., for 2 hours; cooling to 2000 DEG F. at 100 DEG F./min minimum, furnace cooling to 1200 DEG F. in 60 min. or less and thereafter cooling to room temperature; heating to 2050 DEG +/-25 DEG F. for 4 hours; furnace cooling to below 1200 DEG F. in 6 min. or less and thereafter to room temperature; and heating to 1650 DEG +/-25 DEG F. for 4 hours and thereafter furnace cooling to room temperature.</description><language>eng</language><subject>CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1992</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&date=19920331&DB=EPODOC&CC=US&NR=5100484A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19920331&DB=EPODOC&CC=US&NR=5100484A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DAROLIA; RAMGOPAL</creatorcontrib><creatorcontrib>WUKUSICK; CARL S</creatorcontrib><creatorcontrib>BUCHAKJIAN, JR.; LEO</creatorcontrib><title>Heat treatment for nickel-base superalloys</title><description>The present invention is directed to a heat treatment for nickel-base superalloys used to make single crystal parts and components for gas turbine engines. The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to achieve solution of at least 95% of the gamma ' phase, preferably 2385 DEG -2395 DEG F., for 2 hours; cooling to 2000 DEG F. at 100 DEG F./min minimum, furnace cooling to 1200 DEG F. in 60 min. or less and thereafter cooling to room temperature; heating to 2050 DEG +/-25 DEG F. for 4 hours; furnace cooling to below 1200 DEG F. in 6 min. or less and thereafter to room temperature; and heating to 1650 DEG +/-25 DEG F. for 4 hours and thereafter furnace cooling to room temperature.</description><subject>CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1992</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDySE0sUSgpApK5qXklCmn5RQp5mcnZqTm6SYnFqQrFpQWpRYk5OfmVxTwMrGmJOcWpvFCam0HezTXE2UM3tSA_PrW4IDE5NS-1JD402NTQwMDEwsTRmLAKAKExKIU</recordid><startdate>19920331</startdate><enddate>19920331</enddate><creator>DAROLIA; RAMGOPAL</creator><creator>WUKUSICK; CARL S</creator><creator>BUCHAKJIAN, JR.; LEO</creator><scope>EVB</scope></search><sort><creationdate>19920331</creationdate><title>Heat treatment for nickel-base superalloys</title><author>DAROLIA; RAMGOPAL ; WUKUSICK; CARL S ; BUCHAKJIAN, JR.; LEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US5100484A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1992</creationdate><topic>CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>DAROLIA; RAMGOPAL</creatorcontrib><creatorcontrib>WUKUSICK; CARL S</creatorcontrib><creatorcontrib>BUCHAKJIAN, JR.; LEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DAROLIA; RAMGOPAL</au><au>WUKUSICK; CARL S</au><au>BUCHAKJIAN, JR.; LEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Heat treatment for nickel-base superalloys</title><date>1992-03-31</date><risdate>1992</risdate><abstract>The present invention is directed to a heat treatment for nickel-base superalloys used to make single crystal parts and components for gas turbine engines. The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to achieve solution of at least 95% of the gamma ' phase, preferably 2385 DEG -2395 DEG F., for 2 hours; cooling to 2000 DEG F. at 100 DEG F./min minimum, furnace cooling to 1200 DEG F. in 60 min. or less and thereafter cooling to room temperature; heating to 2050 DEG +/-25 DEG F. for 4 hours; furnace cooling to below 1200 DEG F. in 6 min. or less and thereafter to room temperature; and heating to 1650 DEG +/-25 DEG F. for 4 hours and thereafter furnace cooling to room temperature.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Heat treatment for nickel-base superalloys |
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