CAJ | 학술논문

根据鞍钢中薄板坯连铸连轧线的实际条件,通过采用合理的微合金化成分设计以及控轧控冷技术,开发出了600 MPa级C-Si-Mn-Cr热轧双相钢。钢板组织主要由大量铁素体和少量马氏体组成,其力学性能良好,抗拉强度达到600 MPa以上,屈强比低于0.70,延伸率80大于19.0%,值高于0.15,满足国家标准要求。
근거안강중박판배련주련알선적실제조건,통과채용합리적미합금화성분설계이급공알공랭기술,개발출료600 MPa급C-Si-Mn-Cr열알쌍상강。강판조직주요유대량철소체화소량마씨체조성,기역학성능량호,항랍강도체도600 MPa이상,굴강비저우0.70,연신솔80대우19.0%,치고우0.15,만족국가표준요구。
In connection with the actual operations of medium and thin slab continuous cast-ing and continuous rolling production line in Angang, 600 MPa grade hot rolled C-Si-Mn-Cr sys-tem dual-phase steel sheet is developed based on the suitable microalloying composition design and TMCP technology. The microstructure of the developed steel sheet mainly consists of a great deal of ferrite and little martensite with good mechanical properties. Its tensile strength is more than 600 MPa, yield ratio less than 0.70, elongation 80 more than 19.0% and n value over 0.15, all of which can meet the requirements specified in national standards.