Effect of martensite strength on the tensile strength of dual phase steels
Effect of martensite strength on the tensile strength of dual phase steels
复制标题
马氏体强度对双相钢抗拉强度的影响
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
Gwo
中科院分区：
文献类型：
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作者：
Huang;Gwo
Fe-2% Si-1.5% Mn三种含碳量（0.10、0.14和0.19wt%）的钢经亚温退火后水淬获得马氏体+铁素体双相组织。结果表明，双相钢的极限抗拉强度随马氏体体积分数的增加而增加，随马氏体体积分数的增加而增加。虽然双相钢的抗拉强度预测值略高于实验值，但仍可用混合物定律预测双相钢的抗拉强度。当双相钢发生颈缩时，马氏体永远不会达到其极限抗拉强度。
Fe-2% Si-1.5% Mn steels with three levels of carbon content (0.10, 0.14 and 0.19 wt%) were intercritically annealed followed by water quenching to obtain dual phase (martensite plus ferrite) structure. It is found that the ultimate tensile strength of dual phase steels increased with increasing the volume fraction as well as the tensile strength of martensite. The tensile strength of dual phase steel can be predicted using the law of mixtures although the predicted tensile strength is slightly higher than the experimental one. It is suggested that martensite never reaches its ultimate tensile strength when the necking of dual phase steels occurs.