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DESIGN METHOD FOR PRECIPITATION-STRENGTHENED HIGH-STRENGTH STEEL SHEET, PRODUCTION METHOD THEREFOR, AND PRECIPITATION-STRENGTHENED HIGH-STRENGTH STEEL SHEET
DESIGN METHOD FOR PRECIPITATION-STRENGTHENED HIGH-STRENGTH STEEL SHEET, PRODUCTION METHOD THEREFOR, AND PRECIPITATION-STRENGTHENED HIGH-STRENGTH STEEL SHEET
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机译：防沉强化高强度钢板的设计方法，生产方法以及防沉强化高强度钢板
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摘要
PROBLEM TO BE SOLVED: To provide a design method for a precipitation-strengthened high-strength steel sheet by which a steel designing is efficiently and theoretically performed when producing the objective steel sheet by compositely adding carbide-generating elements, and to provide a method for production of the above steel sheet, and such a precipitation-strengthened high-strength steel sheet.;SOLUTION: When designing the precipitation-strengthened high-strength steel sheet with carbide precipitated in a steel structure, one or more of a first metal element M1 to generate MC-type carbide with the electronegativity of 1.8, and one or more of a second metal element M2 with the electronegativity of ≥1.8 are selected as the metal elements to constitute the carbide in such a combination that the atomic radius difference between the first and second metal elements M1 and M2 is 10%, and then the addition amounts of the elements M1, M2 and C are decided so as to generate the carbide containing the first and second metal elements M1 and M2.;COPYRIGHT: (C)2009,JPO&INPIT
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