Method Of Refining The Grain Structure Of Alloys
The invention is directed to a method of making liquid metal compositions containing a large number of solid particles per unit volume, without external heat removal, which solid particles act as nuclei for grains when the metal is solidified. A method of forming a metal solid includes the step of p...
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creator | RAGONE DAVID V FLEMINGS MERTON C |
description | The invention is directed to a method of making liquid metal compositions containing a large number of solid particles per unit volume, without external heat removal, which solid particles act as nuclei for grains when the metal is solidified. A method of forming a metal solid includes the step of partially removing a solute of a liquid metallic solution which is at its liquidus temperature to partially solidify a metal solvent component, thereby forming a solid fraction, wherein there is essentially no reduction in temperature of the liquid metallic solution and solid fraction. The method further includes the step of subsequently lowering the temperature of the liquid metallic solution and solid fraction to solidify the remaining liquid metallic solution and thereby form a solid that includes the solid fraction formed during the step of partial solute removal. In an embodiment, the method further includes turbulence from gas evolution which aids in solid particle formation and grain refinement. |
format | Patent |
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A method of forming a metal solid includes the step of partially removing a solute of a liquid metallic solution which is at its liquidus temperature to partially solidify a metal solvent component, thereby forming a solid fraction, wherein there is essentially no reduction in temperature of the liquid metallic solution and solid fraction. The method further includes the step of subsequently lowering the temperature of the liquid metallic solution and solid fraction to solidify the remaining liquid metallic solution and thereby form a solid that includes the solid fraction formed during the step of partial solute removal. In an embodiment, the method further includes turbulence from gas evolution which aids in solid particle formation and grain refinement.</description><language>eng</language><subject>CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2012</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=20120105&DB=EPODOC&CC=US&NR=2012000317A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120105&DB=EPODOC&CC=US&NR=2012000317A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RAGONE DAVID V</creatorcontrib><creatorcontrib>FLEMINGS MERTON C</creatorcontrib><title>Method Of Refining The Grain Structure Of Alloys</title><description>The invention is directed to a method of making liquid metal compositions containing a large number of solid particles per unit volume, without external heat removal, which solid particles act as nuclei for grains when the metal is solidified. A method of forming a metal solid includes the step of partially removing a solute of a liquid metallic solution which is at its liquidus temperature to partially solidify a metal solvent component, thereby forming a solid fraction, wherein there is essentially no reduction in temperature of the liquid metallic solution and solid fraction. The method further includes the step of subsequently lowering the temperature of the liquid metallic solution and solid fraction to solidify the remaining liquid metallic solution and thereby form a solid that includes the solid fraction formed during the step of partial solute removal. In an embodiment, the method further includes turbulence from gas evolution which aids in solid particle formation and grain refinement.</description><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDwTS3JyE9R8E9TCEpNy8zLzEtXCMlIVXAvSszMUwguKSpNLiktSgXJO-bk5FcW8zCwpiXmFKfyQmluBmU31xBnD93Ugvz41OKCxOTUvNSS-NBgIwNDIwMDA2NDc0dDY-JUAQCSuisf</recordid><startdate>20120105</startdate><enddate>20120105</enddate><creator>RAGONE DAVID V</creator><creator>FLEMINGS MERTON C</creator><scope>EVB</scope></search><sort><creationdate>20120105</creationdate><title>Method Of Refining The Grain Structure Of Alloys</title><author>RAGONE DAVID V ; FLEMINGS MERTON C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2012000317A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2012</creationdate><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>RAGONE DAVID V</creatorcontrib><creatorcontrib>FLEMINGS MERTON C</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RAGONE DAVID V</au><au>FLEMINGS MERTON C</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method Of Refining The Grain Structure Of Alloys</title><date>2012-01-05</date><risdate>2012</risdate><abstract>The invention is directed to a method of making liquid metal compositions containing a large number of solid particles per unit volume, without external heat removal, which solid particles act as nuclei for grains when the metal is solidified. A method of forming a metal solid includes the step of partially removing a solute of a liquid metallic solution which is at its liquidus temperature to partially solidify a metal solvent component, thereby forming a solid fraction, wherein there is essentially no reduction in temperature of the liquid metallic solution and solid fraction. The method further includes the step of subsequently lowering the temperature of the liquid metallic solution and solid fraction to solidify the remaining liquid metallic solution and thereby form a solid that includes the solid fraction formed during the step of partial solute removal. In an embodiment, the method further includes turbulence from gas evolution which aids in solid particle formation and grain refinement.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
title | Method Of Refining The Grain Structure Of Alloys |
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