| Mo含量对Mo-Ni-B堆焊合金组织和性能的影响 |
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| 引用本文： | 温永策,孙俊生,焦恩理,李正阶,赵乐平.Mo含量对Mo-Ni-B堆焊合金组织和性能的影响[J].航空制造技术,2017(13). |
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| 作者姓名： | 温永策 孙俊生 焦恩理 李正阶 赵乐平 |
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| 作者单位： | 1. 山东大学材料液固结构演变与加工教育部重点实验室,济南250061;江苏德龙镍业有限公司,盐城224000;2. 山东大学材料液固结构演变与加工教育部重点实验室,济南,250061 |
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| 基金项目： | 山东省重点研发计划资助 |
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| 摘 要： | 设计制备了Mo-Ni-B系合金粉块新材料,采用TIG堆焊工艺在Q235钢基体上制备Ni基三元硼化物堆焊合金。研究了合金粉块中Mo含量对三元硼化物堆焊合金层组织、物相、硬度、耐磨性、耐蚀性的影响。结果表明,堆焊金属主要由三元硼化物Mo2M’B2、Mo Ni4、Mo5(B、Si)3、γ-(Fe,Ni,Mo,Cr)等相组成;Mo含量对堆焊合金的显微组织有较大影响;随着合金粉块中Mo含量的增加,堆焊合金和三元硼化物的显微硬度均明显下降;在所研究堆焊合金中,Mo 44.18%的耐蚀性最好,Mo 37.53%的堆焊合金的耐磨性能是Q235钢的27.7倍。
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| 关 键 词： | 三元硼化物 TIG堆焊 组织性能 |
Effect of Mo Content on Microstructure and Mechanical Property of Mo-Ni-B Surfacing Alloy |
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| WEN Yongce,SUN Junsheng,JIAO Enli,LI Zhengjie,ZHAO Leping.Effect of Mo Content on Microstructure and Mechanical Property of Mo-Ni-B Surfacing Alloy[J].Aeronautical Manufacturing Technology,2017(13). |
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| Authors: | WEN Yongce SUN Junsheng JIAO Enli LI Zhengjie ZHAO Leping |
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| Abstract: | New alloy powder blocks with Mo-Ni-B system were designed.Ni-based ternary boride deposited alloys were fabricated on Q235 steel substrates using argon arc welding process.Effect of Mo content on microstructure,phase,hardness,wear resistance and corrosion resistance of ternary boride deposited alloy was studied.The results show that the deposited metals consisted of ternary boride phases,such as Mo2M'B2,MoNi4,Mo5(B、Si)3,γ-(Fe,Ni,Mo,Cr),etc.Besides,Mo content has a great influence on the microstructure of deposited metals.In this study,the alloy with 44.18％ Mo content has the best corrosion resistance and the wear resistance of alloy with 37.53％ Mo content is 27.7 times higher than Q235 steel. |
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| Keywords: | Ternary boride TIG cladding Microstructure and property |
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