Ni含量对特超级双相不锈钢S32707组织与性能的影响研究
Research on the Effect of Ni Content on Microstructure and Properties of Hyper Duplex Stainless Steel S32707
摘要: 本文利用金相数码显微镜、扫描电镜、电化学工作站、电子万能拉伸试验机等测试手段，研究了Ni含量对特超级双相不锈钢S32707的微观组织、相比例、耐点蚀性能和力学性能的影响规律，阐明了Ni含量对钢组织和性能的影响机理。结果表明：随着Ni含量的增加，铁素体含量逐渐减少，耐点蚀性能略微增强，抗拉强度和屈服强度均逐渐减小，延伸率先增加后减小。当Ni含量为7.0%时，S32707的综合力学性能最好。
Abstract: In this paper, the effect of Ni content on microstructure, phase ratio, corrosion resistance and me-chanical property of hyper duplex stainless steel S32707 was researched using metallographic digital microscope, scanning electron microscope, electrochemical workstation, and electronic universal tensile testing machine. The related mechanism is clarified. The result indicates that, with the increase of Ni content, the ferrite phase content gradually decreases, the pitting corrosion resistance slightly increases, the tensile strength and yield strength gradually decrease, and the elongation increases first and then decreases. When the amount of Ni is added to 7.0%, S32707 has the best comprehensive mechanical property.
文章引用：张彬彬, 张树才, 吴敬玺, 常朋飞, 范思鹏, 李志兴, 姜周华. Ni含量对特超级双相不锈钢S32707组织与性能的影响研究[J]. 冶金工程, 2018, 5(2): 39-46. https://doi.org/10.12677/MEng.2018.52006

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