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首页> 外文期刊>Journal of Materials Engineering and Performance >Mechanical and Electrochemical Behavior of Dual-Phase Steels Having Varying Ferrite-Martensite Volume Fractions
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Mechanical and Electrochemical Behavior of Dual-Phase Steels Having Varying Ferrite-Martensite Volume Fractions

机译：双相钢的机械和电化学行为，具有不同铁氧体 - 马氏体体积分数的双相钢

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摘要

Dual-phase (DP) steels behave differently under corrosive environment depending upon the volume fractions of phases, mainly martensite, ferrite and bainite. The mechanical behavior and corrosion resistance of DP steels with varying martensite (from 32 to 100%) are investigated. The increase in martensite volume fraction of DP steel results in significant improvement in tensile strength and hardness with a subsequent reduction in elongation. Unlike the mechanical behavior, the increase in martensite volume fraction in steel does not exhibit a direct relationship with their corrosion resistance behavior. The corrosion mechanism in DP steels having different martensite and ferrite volume fractions depends on the self-corrosion resistance behavior of both the phases as well as the occurrence of galvanic corrosion between them.
机译：双相（DP）钢在腐蚀性环境下表现不同，这取决于阶段的体积分数，主要是马氏体，铁氧体和贝氏体。 研究了具有不同马氏体（32至100％）的DP钢的机械特性和耐腐蚀性。 DP钢的马氏体体积分数的增加导致拉伸强度和硬度的显着提高，随后的伸长率降低。 与机械行为不同，钢中马氏体体积分数的增加不会与其耐腐蚀行为表现出直接关系。 具有不同马氏体和铁氧体体积分数的DP钢中的腐蚀机制取决于各阶段的自腐蚀性，以及它们之间的电抗腐蚀的发生。

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