High-strength steel sheet and manufacturing method thereof
A high-strength steel sheet which satisfies a composition containing, in terms of mass%, 0.12-0.40% C, 0-0.6% Si, 0-1.5% (excluding 0%) Mn, 0-0.15% (excluding 0%) Al, 0-0.01% (excluding 0%) N, 0-0.02%(excluding 0%) P, and 0-0.01% (excluding 0%) S and which has a martensite single-phase structure. Of...
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| creator | UTSUMI YUKIHIRO SHIRAKI ATSUHIRO |
| description | A high-strength steel sheet which satisfies a composition containing, in terms of mass%, 0.12-0.40% C, 0-0.6% Si, 0-1.5% (excluding 0%) Mn, 0-0.15% (excluding 0%) Al, 0-0.01% (excluding 0%) N, 0-0.02%(excluding 0%) P, and 0-0.01% (excluding 0%) S and which has a martensite single-phase structure. Of the steel sheet, the regions having a Kernel average misorientation value (KAM value) of 1 DEG orgreater account for 50% or more. In the steel sheet, a surface layer region extending from the surface to a depth corresponding to 1/4 the sheet thickness has a maximum residual tensile stress of 80 MPa or less. Due to this configuration, the high-strength steel sheet is excellent in terms of the delayed-fracture resistance of the cut end surfaces and the steel sheet base material.
种高强度钢板，以质量％计满足C：0.12～0.40％、Si：0％以上且0.6％以下、Mn：超过0％且1.5％以下、Al：超过0％且0.15％以下、N：超过0％且0.01％以下、P：超过0％且0.02％以下、S：超过0％且0.01％以下，并且具有马氏体单相组织，其中，KAM值亦即Kernel Average Misorientation值为1°以上的区域占50％以上，从表面到板厚1/4深度位置的表层区域的最大拉伸残余应力为80MPa以下。由此，能够实现切割端面和钢板母材的耐延迟断 |
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种高强度钢板，以质量％计满足C：0.12～0.40％、Si：0％以上且0.6％以下、Mn：超过0％且1.5％以下、Al：超过0％且0.15％以下、N：超过0％且0.01％以下、P：超过0％且0.02％以下、S：超过0％且0.01％以下，并且具有马氏体单相组织，其中，KAM值亦即Kernel Average Misorientation值为1°以上的区域占50％以上，从表面到板厚1/4深度位置的表层区域的最大拉伸残余应力为80MPa以下。由此，能够实现切割端面和钢板母材的耐延迟断</description><language>chi ; eng</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>2019</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=20190212&DB=EPODOC&CC=CN&NR=109321821A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190212&DB=EPODOC&CC=CN&NR=109321821A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UTSUMI YUKIHIRO</creatorcontrib><creatorcontrib>SHIRAKI ATSUHIRO</creatorcontrib><title>High-strength steel sheet and manufacturing method thereof</title><description>A high-strength steel sheet which satisfies a composition containing, in terms of mass%, 0.12-0.40% C, 0-0.6% Si, 0-1.5% (excluding 0%) Mn, 0-0.15% (excluding 0%) Al, 0-0.01% (excluding 0%) N, 0-0.02%(excluding 0%) P, and 0-0.01% (excluding 0%) S and which has a martensite single-phase structure. Of the steel sheet, the regions having a Kernel average misorientation value (KAM value) of 1 DEG orgreater account for 50% or more. In the steel sheet, a surface layer region extending from the surface to a depth corresponding to 1/4 the sheet thickness has a maximum residual tensile stress of 80 MPa or less. Due to this configuration, the high-strength steel sheet is excellent in terms of the delayed-fracture resistance of the cut end surfaces and the steel sheet base material.
种高强度钢板，以质量％计满足C：0.12～0.40％、Si：0％以上且0.6％以下、Mn：超过0％且1.5％以下、Al：超过0％且0.15％以下、N：超过0％且0.01％以下、P：超过0％且0.02％以下、S：超过0％且0.01％以下，并且具有马氏体单相组织，其中，KAM值亦即Kernel Average Misorientation值为1°以上的区域占50％以上，从表面到板厚1/4深度位置的表层区域的最大拉伸残余应力为80MPa以下。由此，能够实现切割端面和钢板母材的耐延迟断</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>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDyyEzP0C0uKUrNSy_JUCguSU3NUSjOSE0tUUjMS1HITcwrTUtMLiktysxLV8hNLcnIT1EoyUgtSs1P42FgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8c5-hgaWxkaGFkaGjsbEqAEAjqgvPg</recordid><startdate>20190212</startdate><enddate>20190212</enddate><creator>UTSUMI YUKIHIRO</creator><creator>SHIRAKI ATSUHIRO</creator><scope>EVB</scope></search><sort><creationdate>20190212</creationdate><title>High-strength steel sheet and manufacturing method thereof</title><author>UTSUMI YUKIHIRO ; SHIRAKI ATSUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN109321821A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</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>UTSUMI YUKIHIRO</creatorcontrib><creatorcontrib>SHIRAKI ATSUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>UTSUMI YUKIHIRO</au><au>SHIRAKI ATSUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>High-strength steel sheet and manufacturing method thereof</title><date>2019-02-12</date><risdate>2019</risdate><abstract>A high-strength steel sheet which satisfies a composition containing, in terms of mass%, 0.12-0.40% C, 0-0.6% Si, 0-1.5% (excluding 0%) Mn, 0-0.15% (excluding 0%) Al, 0-0.01% (excluding 0%) N, 0-0.02%(excluding 0%) P, and 0-0.01% (excluding 0%) S and which has a martensite single-phase structure. Of the steel sheet, the regions having a Kernel average misorientation value (KAM value) of 1 DEG orgreater account for 50% or more. In the steel sheet, a surface layer region extending from the surface to a depth corresponding to 1/4 the sheet thickness has a maximum residual tensile stress of 80 MPa or less. Due to this configuration, the high-strength steel sheet is excellent in terms of the delayed-fracture resistance of the cut end surfaces and the steel sheet base material.
种高强度钢板，以质量％计满足C：0.12～0.40％、Si：0％以上且0.6％以下、Mn：超过0％且1.5％以下、Al：超过0％且0.15％以下、N：超过0％且0.01％以下、P：超过0％且0.02％以下、S：超过0％且0.01％以下，并且具有马氏体单相组织，其中，KAM值亦即Kernel Average Misorientation值为1°以上的区域占50％以上，从表面到板厚1/4深度位置的表层区域的最大拉伸残余应力为80MPa以下。由此，能够实现切割端面和钢板母材的耐延迟断</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 steel sheet and manufacturing method thereof |
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