STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME
Steel sheet and high strength press hardened steel part and method of manufacturing the same Steel sheet having a chemical composition comprising in wt% C : 0.2 - 0.4%, Mn : 0.8 - 2.0%, Si : 0.1 - 0.5 %, Al : 0.01 - 0.1 %, Ti: 0.01 - 0.1 %, B: 0.0005 - 0.005 %, P ≤ 0.040 %, Ca ≤ 0.01%, S ≤ 0.006 %,...
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| creator | LUCAS, Emmanuel STECHMANN, Guillaume COBO, Sebastian SALIB, Matthieu |
| description | Steel sheet and high strength press hardened steel part and method of manufacturing the same Steel sheet having a chemical composition comprising in wt% C : 0.2 - 0.4%, Mn : 0.8 - 2.0%, Si : 0.1 - 0.5 %, Al : 0.01 - 0.1 %, Ti: 0.01 - 0.1 %, B: 0.0005 - 0.005 %, P ≤ 0.040 %, Ca ≤ 0.01%, S ≤ 0.006 %, N ≤ 0.01 %, Said steel sheet comprising from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk, said bulk comprising an inclusion population wherein the sum of clustering indexes of MnS and TiN / Ti(C,N) inclusions is less than or equal to 300µm/mm². This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300MPa and a bending anisotropy equal to or lower than 7°.
Tôle d'acier et pièce d'acier trempé à la presse à haute résistance et procédé de fabrication de celles-ci, la tôle d'acier ayant une composition chimique comprenant, en % en poids, C : de 0,2 à 0,4 %, Mn : de 0,8 à 2,0 %, Si : de 0,1 à 0,5 %, Al : de 0,01 à 0,1 %, Ti : de 0,01 à 0,1 %, B : de 0,0005 à 0,005 %, P ≤ 0,040 %, Ca ≤ 0,01 %, S ≤ 0,006 %, N ≤ 0,01%, ladite tôle d'acier comprenant entre la masse et la surface de la tôle d'acier revêtue une masse et une couche de surface occupant les 10 % les plus à l'extérieur de l'épaisseur de chaque côté de la masse, ladite masse comprenant une population d'inclusion, la somme des indices de regroupement des inclusions de MnS et TiN/Ti(C,N) étant inférieure ou égale à 300 µm/mm2. Ceci permet de fabriquer des pièces pressées à chaud ayant une résistance à la traction supérieure ou égale à 1 300 MPa et une anisotropie de flexion inférieure ou égale à 7°. |
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Tôle d'acier et pièce d'acier trempé à la presse à haute résistance et procédé de fabrication de celles-ci, la tôle d'acier ayant une composition chimique comprenant, en % en poids, C : de 0,2 à 0,4 %, Mn : de 0,8 à 2,0 %, Si : de 0,1 à 0,5 %, Al : de 0,01 à 0,1 %, Ti : de 0,01 à 0,1 %, B : de 0,0005 à 0,005 %, P ≤ 0,040 %, Ca ≤ 0,01 %, S ≤ 0,006 %, N ≤ 0,01%, ladite tôle d'acier comprenant entre la masse et la surface de la tôle d'acier revêtue une masse et une couche de surface occupant les 10 % les plus à l'extérieur de l'épaisseur de chaque côté de la masse, ladite masse comprenant une population d'inclusion, la somme des indices de regroupement des inclusions de MnS et TiN/Ti(C,N) étant inférieure ou égale à 300 µm/mm2. Ceci permet de fabriquer des pièces pressées à chaud ayant une résistance à la traction supérieure ou égale à 1 300 MPa et une anisotropie de flexion inférieure ou égale à 7°.</description><language>eng ; fre</language><subject>ALLOYS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION ; TRANSPORTING ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2024</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=20240822&DB=EPODOC&CC=WO&NR=2024171173A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240822&DB=EPODOC&CC=WO&NR=2024171173A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LUCAS, Emmanuel</creatorcontrib><creatorcontrib>STECHMANN, Guillaume</creatorcontrib><creatorcontrib>COBO, Sebastian</creatorcontrib><creatorcontrib>SALIB, Matthieu</creatorcontrib><title>STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME</title><description>Steel sheet and high strength press hardened steel part and method of manufacturing the same Steel sheet having a chemical composition comprising in wt% C : 0.2 - 0.4%, Mn : 0.8 - 2.0%, Si : 0.1 - 0.5 %, Al : 0.01 - 0.1 %, Ti: 0.01 - 0.1 %, B: 0.0005 - 0.005 %, P ≤ 0.040 %, Ca ≤ 0.01%, S ≤ 0.006 %, N ≤ 0.01 %, Said steel sheet comprising from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk, said bulk comprising an inclusion population wherein the sum of clustering indexes of MnS and TiN / Ti(C,N) inclusions is less than or equal to 300µm/mm². This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300MPa and a bending anisotropy equal to or lower than 7°.
Tôle d'acier et pièce d'acier trempé à la presse à haute résistance et procédé de fabrication de celles-ci, la tôle d'acier ayant une composition chimique comprenant, en % en poids, C : de 0,2 à 0,4 %, Mn : de 0,8 à 2,0 %, Si : de 0,1 à 0,5 %, Al : de 0,01 à 0,1 %, Ti : de 0,01 à 0,1 %, B : de 0,0005 à 0,005 %, P ≤ 0,040 %, Ca ≤ 0,01 %, S ≤ 0,006 %, N ≤ 0,01%, ladite tôle d'acier comprenant entre la masse et la surface de la tôle d'acier revêtue une masse et une couche de surface occupant les 10 % les plus à l'extérieur de l'épaisseur de chaque côté de la masse, ladite masse comprenant une population d'inclusion, la somme des indices de regroupement des inclusions de MnS et TiN/Ti(C,N) étant inférieure ou égale à 300 µm/mm2. Ceci permet de fabriquer des pièces pressées à chaud ayant une résistance à la traction supérieure ou égale à 1 300 MPa et une anisotropie de flexion inférieure ou égale à 7°.</description><subject>ALLOYS</subject><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</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>PERFORMING OPERATIONS</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TRANSPORTING</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzD0KwkAQhuE0FqLeYcBacBPBesxOMoFkN-xO_KlCkLUSDcQDeHSNegCrD14evmn09EJUgmciATQauMgZvDgyuTDUjrwHRqfJkIYvrtHJu-0LkwMdUypLMgI7MnosaApvxdn69PmrSNhqsBlUaJoMU2ncyIQJPFY0jyaX7jqExW9n0TIjSXkV-nsbhr47h1t4tAcbr-ON2iq1TVAl_6kXNtQ81w</recordid><startdate>20240822</startdate><enddate>20240822</enddate><creator>LUCAS, Emmanuel</creator><creator>STECHMANN, Guillaume</creator><creator>COBO, Sebastian</creator><creator>SALIB, Matthieu</creator><scope>EVB</scope></search><sort><creationdate>20240822</creationdate><title>STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME</title><author>LUCAS, Emmanuel ; STECHMANN, Guillaume ; COBO, Sebastian ; SALIB, Matthieu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2024171173A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2024</creationdate><topic>ALLOYS</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</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>PERFORMING OPERATIONS</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><topic>TRANSPORTING</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>LUCAS, Emmanuel</creatorcontrib><creatorcontrib>STECHMANN, Guillaume</creatorcontrib><creatorcontrib>COBO, Sebastian</creatorcontrib><creatorcontrib>SALIB, Matthieu</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LUCAS, Emmanuel</au><au>STECHMANN, Guillaume</au><au>COBO, Sebastian</au><au>SALIB, Matthieu</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME</title><date>2024-08-22</date><risdate>2024</risdate><abstract>Steel sheet and high strength press hardened steel part and method of manufacturing the same Steel sheet having a chemical composition comprising in wt% C : 0.2 - 0.4%, Mn : 0.8 - 2.0%, Si : 0.1 - 0.5 %, Al : 0.01 - 0.1 %, Ti: 0.01 - 0.1 %, B: 0.0005 - 0.005 %, P ≤ 0.040 %, Ca ≤ 0.01%, S ≤ 0.006 %, N ≤ 0.01 %, Said steel sheet comprising from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk, said bulk comprising an inclusion population wherein the sum of clustering indexes of MnS and TiN / Ti(C,N) inclusions is less than or equal to 300µm/mm². This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300MPa and a bending anisotropy equal to or lower than 7°.
Tôle d'acier et pièce d'acier trempé à la presse à haute résistance et procédé de fabrication de celles-ci, la tôle d'acier ayant une composition chimique comprenant, en % en poids, C : de 0,2 à 0,4 %, Mn : de 0,8 à 2,0 %, Si : de 0,1 à 0,5 %, Al : de 0,01 à 0,1 %, Ti : de 0,01 à 0,1 %, B : de 0,0005 à 0,005 %, P ≤ 0,040 %, Ca ≤ 0,01 %, S ≤ 0,006 %, N ≤ 0,01%, ladite tôle d'acier comprenant entre la masse et la surface de la tôle d'acier revêtue une masse et une couche de surface occupant les 10 % les plus à l'extérieur de l'épaisseur de chaque côté de la masse, ladite masse comprenant une population d'inclusion, la somme des indices de regroupement des inclusions de MnS et TiN/Ti(C,N) étant inférieure ou égale à 300 µm/mm2. Ceci permet de fabriquer des pièces pressées à chaud ayant une résistance à la traction supérieure ou égale à 1 300 MPa et une anisotropie de flexion inférieure ou égale à 7°.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME |
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