590MPa-grade high-formability hot-dip galvanized dual-phase steel plate and preparation method thereof
The invention relates to the field of automobile steel manufacturing, in particular to a 590MPa-grade high-formability hot-dip galvanized dual-phase steel plate and a preparation method thereof. Comprising the following components in percentage by weight: 0.05%-0.09% of C, 0.5%-0.9% of Si, 1.0%-1.8%...
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| creator | MIAO XINLEI GUO QIANG WANG YUBIN XIA JING WU QINGMEI WANG SHAOXIN ZHENG LIANHUI TONG AINAN ZHANG BAOTIAN |
| description | The invention relates to the field of automobile steel manufacturing, in particular to a 590MPa-grade high-formability hot-dip galvanized dual-phase steel plate and a preparation method thereof. Comprising the following components in percentage by weight: 0.05%-0.09% of C, 0.5%-0.9% of Si, 1.0%-1.8% of Mn, less than or equal to 0.02% of P, less than or equal to 0.01% of S and 0.02%-0.06% of Al. The alloy comprises the following components in percentage by weight: 0.3-0.9% of Cr, and the balance of Fe and inevitable impurities, and w is the percentage by weight. Compared with conventional DP590, under the condition that the yield strength and the tensile strength are basically kept consistent, the ductility (A80 longitudinal direction) can be improved by 20% or above, the n10-20/Ag value can be improved by 22% or above, the hole expansion rate can be improved by 28% or above, and the stamping ductility and the flanging formability of the material are synchronously improved. The conventional steel-making, hot-r |
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Comprising the following components in percentage by weight: 0.05%-0.09% of C, 0.5%-0.9% of Si, 1.0%-1.8% of Mn, less than or equal to 0.02% of P, less than or equal to 0.01% of S and 0.02%-0.06% of Al. The alloy comprises the following components in percentage by weight: 0.3-0.9% of Cr, and the balance of Fe and inevitable impurities, and w is the percentage by weight. Compared with conventional DP590, under the condition that the yield strength and the tensile strength are basically kept consistent, the ductility (A80 longitudinal direction) can be improved by 20% or above, the n10-20/Ag value can be improved by 22% or above, the hole expansion rate can be improved by 28% or above, and the stamping ductility and the flanging formability of the material are synchronously improved. 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Comprising the following components in percentage by weight: 0.05%-0.09% of C, 0.5%-0.9% of Si, 1.0%-1.8% of Mn, less than or equal to 0.02% of P, less than or equal to 0.01% of S and 0.02%-0.06% of Al. The alloy comprises the following components in percentage by weight: 0.3-0.9% of Cr, and the balance of Fe and inevitable impurities, and w is the percentage by weight. Compared with conventional DP590, under the condition that the yield strength and the tensile strength are basically kept consistent, the ductility (A80 longitudinal direction) can be improved by 20% or above, the n10-20/Ag value can be improved by 22% or above, the hole expansion rate can be improved by 28% or above, and the stamping ductility and the flanging formability of the material are synchronously improved. 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Comprising the following components in percentage by weight: 0.05%-0.09% of C, 0.5%-0.9% of Si, 1.0%-1.8% of Mn, less than or equal to 0.02% of P, less than or equal to 0.01% of S and 0.02%-0.06% of Al. The alloy comprises the following components in percentage by weight: 0.3-0.9% of Cr, and the balance of Fe and inevitable impurities, and w is the percentage by weight. Compared with conventional DP590, under the condition that the yield strength and the tensile strength are basically kept consistent, the ductility (A80 longitudinal direction) can be improved by 20% or above, the n10-20/Ag value can be improved by 22% or above, the hole expansion rate can be improved by 28% or above, and the stamping ductility and the flanging formability of the material are synchronously improved. The conventional steel-making, hot-r</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 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 PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | 590MPa-grade high-formability hot-dip galvanized dual-phase steel plate and preparation method thereof |
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