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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Microstructural study of (Co-Ni-Fe) based alloys
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Microstructural study of (Co-Ni-Fe) based alloys

机译：（Co-Ni-Fe）基合金的显微组织研究

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摘要

Three types of hardfacing alloys containing a mixture of Co, Ni and Fe and a constant amount of C, Cr, W, Al, and Si were elaborated. The microstructure characterisation was carried out using different techniques of observations and analyses. The solidification phases are the M_7C_3 and M_6C carbides in a solid solution rich in basic elements (Co, Fe, Ni, Al and Si). The structural evolutions induced by the ageing treatment were studied. A strong increase of the hardness was obtained. No difference in the nature of the phases present in the three alloys was noticed. The matrix is an ordered AlFe_3 type (DO_3) compound. Numerous precipitates are pointed out. Submicron cuboid M_(23)C_6 carbides and elongated precipitates with the Co_2Si type structure (C37) were identified.
机译：精心制作了三种类型的堆焊合金，这些堆焊合金包含Co，Ni和Fe的混合物以及恒定量的C，Cr，W，Al和Si。使用不同的观察和分析技术进行了微观结构表征。凝固相为富含碱性元素（Co，Fe，Ni，Al和Si）的固溶体中的M_7C_3和M_6C碳化物。研究了时效处理引起的结构演变。获得了硬度的强烈增加。没有发现存在于三种合金中的相的性质上的差异。基质是有序的AlFe_3型（DO_3）化合物。指出了许多沉淀物。鉴定出亚微米长方体M_（23）C_6碳化物和具有Co_2Si型结构（C37）的细长析出物。

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