Effects of Nb on microstructure and wear resistance of Fe–Cr–C–B surfacing alloy
查看参考文献19篇
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文摘
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The influence of Nb on the microstructure and wear resistance of the surfacing layer was investigated by using the Fe-based flux-cored wire in the Fe–Cr–C–B system. The microstructure, microhardness and wear resistance properties of the samples were investigated by X-ray diffraction, scanning electron microscopy, microhardness testing and abrasive wear testing, respectively. The results indicate that microstructures of the alloy are composed of martensite, retained austenite, M_(23)(C,B)_6 and NbC. Boride M_(23)(C,B)_6 is distributed along the grain boundaries, while NbC in shape-regular quadrilateral is distributed in martensite. The microhardness is distributed from the substrate to the surfacing layer gradiently. NbC significantly improved the wear resistance of surfacing layer. |
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来源
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Journal of Iron and Steel Research
, International,2018,25(2):243-251 【核心库】
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DOI
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10.1007/s42243-018-0033-3
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关键词
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Flux-cored wire
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Surfacing layer
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Microhardness
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Microstructure
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Wear resistance
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地址
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Department of Material Science and Engineering, Shenyang University of Technology, Liaoning, Shenyang, 110870
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1006-706X |
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学科
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冶金工业 |
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基金
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supported by Doctor Foundation Start-up Project of Liaoning Province
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文献收藏号
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CSCD:6304600
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