HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME
This high strength hot-rolled steel sheet comprises specific chemical components and has a structure that contains, in area percentage, from 20% to 60% (inclusive) of martensite and 40% or more of ferrite, with the total of the martensite and the ferrite being 90% or more. The martensite has an aver...
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creator | Daiki KAMADA Mayuko KIKUZUKI Yuuki KANZAWA Takeshi TOYODA |
description | This high strength hot-rolled steel sheet comprises specific chemical components and has a structure that contains, in area percentage, from 20% to 60% (inclusive) of martensite and 40% or more of ferrite, with the total of the martensite and the ferrite being 90% or more. The martensite has an average particle diameter of from 5.0 µ to 50 µ (inclusive); the ratio of the hardness of the martensite to the hardness of the ferrite is from 0.6 to 1.6 (inclusive); and this high strength hot-rolled steel sheet has a tensile strength of 980 MPa or more.
Esta lámina de acero laminada en caliente de alta resistencia tiene una composición química predeterminada, en la cual la estructura de la lámina de acero laminada en caliente de alta resistencia contiene martensita en una relación de área de 20% o más y 60% o menos y ferrita en una relación de área de 40% o más, y la relación de área total de la martensita y la ferrita es 90% o más, el tamaño de grano promedio de la martensita es 5.0 µm o más y 50 µm o menos, la relación de la dureza de la martensita a la dureza de la ferrita es 0.6 o más y 1.6 o menos, y la resistencia a la tracción de la lámina de acero laminada en caliente de alta resistencia es de 980 MPa o más. |
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Esta lámina de acero laminada en caliente de alta resistencia tiene una composición química predeterminada, en la cual la estructura de la lámina de acero laminada en caliente de alta resistencia contiene martensita en una relación de área de 20% o más y 60% o menos y ferrita en una relación de área de 40% o más, y la relación de área total de la martensita y la ferrita es 90% o más, el tamaño de grano promedio de la martensita es 5.0 µm o más y 50 µm o menos, la relación de la dureza de la martensita a la dureza de la ferrita es 0.6 o más y 1.6 o menos, y la resistencia a la tracción de la lámina de acero laminada en caliente de alta resistencia es de 980 MPa o más.</description><language>eng ; spa</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2018</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=20180921&DB=EPODOC&CC=MX&NR=2018006061A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76304</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180921&DB=EPODOC&CC=MX&NR=2018006061A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Daiki KAMADA</creatorcontrib><creatorcontrib>Mayuko KIKUZUKI</creatorcontrib><creatorcontrib>Yuuki KANZAWA</creatorcontrib><creatorcontrib>Takeshi TOYODA</creatorcontrib><title>HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME</title><description>This high strength hot-rolled steel sheet comprises specific chemical components and has a structure that contains, in area percentage, from 20% to 60% (inclusive) of martensite and 40% or more of ferrite, with the total of the martensite and the ferrite being 90% or more. The martensite has an average particle diameter of from 5.0 µ to 50 µ (inclusive); the ratio of the hardness of the martensite to the hardness of the ferrite is from 0.6 to 1.6 (inclusive); and this high strength hot-rolled steel sheet has a tensile strength of 980 MPa or more.
Esta lámina de acero laminada en caliente de alta resistencia tiene una composición química predeterminada, en la cual la estructura de la lámina de acero laminada en caliente de alta resistencia contiene martensita en una relación de área de 20% o más y 60% o menos y ferrita en una relación de área de 40% o más, y la relación de área total de la martensita y la ferrita es 90% o más, el tamaño de grano promedio de la martensita es 5.0 µm o más y 50 µm o menos, la relación de la dureza de la martensita a la dureza de la ferrita es 0.6 o más y 1.6 o menos, y la resistencia a la tracción de la lámina de acero laminada en caliente de alta resistencia es de 980 MPa o más.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDy8HT3UAgOCXL1cw_xUPDwD9EN8vfxcXUBirm6-igEe7i6hig4-rko-LqGePi7KLj5BykEBPm7hDp7-rkrBDv6uvIwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknjfCCMDQwsDAzMDM0NHY6IUAQA8qCtu</recordid><startdate>20180921</startdate><enddate>20180921</enddate><creator>Daiki KAMADA</creator><creator>Mayuko KIKUZUKI</creator><creator>Yuuki KANZAWA</creator><creator>Takeshi TOYODA</creator><scope>EVB</scope></search><sort><creationdate>20180921</creationdate><title>HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME</title><author>Daiki KAMADA ; Mayuko KIKUZUKI ; Yuuki KANZAWA ; Takeshi TOYODA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MX2018006061A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; spa</language><creationdate>2018</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>Daiki KAMADA</creatorcontrib><creatorcontrib>Mayuko KIKUZUKI</creatorcontrib><creatorcontrib>Yuuki KANZAWA</creatorcontrib><creatorcontrib>Takeshi TOYODA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Daiki KAMADA</au><au>Mayuko KIKUZUKI</au><au>Yuuki KANZAWA</au><au>Takeshi TOYODA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME</title><date>2018-09-21</date><risdate>2018</risdate><abstract>This high strength hot-rolled steel sheet comprises specific chemical components and has a structure that contains, in area percentage, from 20% to 60% (inclusive) of martensite and 40% or more of ferrite, with the total of the martensite and the ferrite being 90% or more. The martensite has an average particle diameter of from 5.0 µ to 50 µ (inclusive); the ratio of the hardness of the martensite to the hardness of the ferrite is from 0.6 to 1.6 (inclusive); and this high strength hot-rolled steel sheet has a tensile strength of 980 MPa or more.
Esta lámina de acero laminada en caliente de alta resistencia tiene una composición química predeterminada, en la cual la estructura de la lámina de acero laminada en caliente de alta resistencia contiene martensita en una relación de área de 20% o más y 60% o menos y ferrita en una relación de área de 40% o más, y la relación de área total de la martensita y la ferrita es 90% o más, el tamaño de grano promedio de la martensita es 5.0 µm o más y 50 µm o menos, la relación de la dureza de la martensita a la dureza de la ferrita es 0.6 o más y 1.6 o menos, y la resistencia a la tracción de la lámina de acero laminada en caliente de alta resistencia es de 980 MPa o más.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
title | HIGH STRENGTH HOT-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME |
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