| 硅含量对一种耐蚀合金组织与耐蚀性能的影响 |
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| 引用本文： | 王道红,谢君,张鹏,侯桂臣,杨金侠,荀淑玲,周亦胄. 硅含量对一种耐蚀合金组织与耐蚀性能的影响[J]. 铸造, 2021, 0(3): 351-354,355 |
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| 作者姓名： | 王道红 谢君 张鹏 侯桂臣 杨金侠 荀淑玲 周亦胄 |
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| 作者单位： | 江苏飞跃机泵集团有限公司;江苏金研新材料科技有限公司;中国科学院金属研究所 |
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| 基金项目： | 国家自然科学基金(51701212);中国科学院科技服务网络计划区域重点项目(KFJ-STSQYZX-079);辽宁省自然基金(2019-MS-336);2018年度泰州市高层次创新创业人才引进计划项目(2018-21);2020年度中国科学院青年创新促进会项目(2020198)。 |
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| 摘 要： | 设计并熔炼了不同硅含量的三种耐磨耐蚀合金30Ni-35Cr-6.5Mo-1Nb-0.25N-xSi(x=1、2、3)-Fe,分别命名为1Si、2Si、3Si合金,利用SEM、XRD、硬度测试以及电化学测试研究了三种合金的组织和性能。结果表明,三种合金均为双相结构,两相分别为γ相和σ-Cr13Ni5Si2相,且随着硅含量的增加,σ-Cr13Ni5Si2相所占的比例逐渐增加,合金的洛氏硬度也逐渐增大。动电位极化曲线以及电化学阻抗谱结果表明,3Si合金在10%H2SO4溶液中的耐蚀效果最优,而1Si合金的耐蚀性最差。合金硬度和耐蚀能力的提高主要得益于合金中σ相比例的增大。
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| 关 键 词： | 硅元素 耐磨耐蚀合金 硬度 耐蚀性 |
Effect of Silicon Content on Microstructure and Corrosion Resistance of a Corrosion Resistant Alloy |
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| WANG Dao-hong,XIE Jun,ZHANG Peng,HOU Gui-chen,YANG Jin-xia,XUN Shuling,ZHOU Yi-zhou. Effect of Silicon Content on Microstructure and Corrosion Resistance of a Corrosion Resistant Alloy[J]. China Foundry, 2021, 0(3): 351-354,355 |
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| Authors: | WANG Dao-hong XIE Jun ZHANG Peng HOU Gui-chen YANG Jin-xia XUN Shuling ZHOU Yi-zhou |
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| Affiliation: | (JiangSu Feiyue Machine&Pump Gruop Co.,Ltd.,Jingjiang 214536,Jiangsu,China;JiangSu Jinyan New Material Technology Co.,Ltd.,Jingjiang 214536,Jiangsu,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China) |
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| Abstract: | Three Si-containing wear-resistant and corrosion-resistant alloys 30Ni-35Cr-6.5Mo-1Nb-0.25N-xSi(x=1,2,3)-Fe,named 1Si,2Si,3Si,were designed and melted.SEM,XRD,hardness test and electrochemical test were conducted to study the microstructure and properties of the three alloys.The results show that the three alloys have a dual-phase structure ofγ-phase andσ-Cr13Ni5Si2,and the proportion ofσ-Cr13Ni5Si2 phase gradually increases with increasing silicon content;the Rockwell hardness HRC of the alloys also gradually increases.Potential polarization curves and electrochemical impedance spectroscopy results show that the 3Si alloy has the best corrosion resistance in 10%H2SO4 solution,while the 1Si alloy has the worst corrosion resistance.The increase in hardness and corrosion resistance of alloys is mainly due to the increase inσphase ratio. |
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| Keywords: | silicon wear-resistant and corrosion-resistant alloy hardness corrosion resistance |
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