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| AgCuZnNi合金铸态组织及凝固路径分析 |
| The Study on Microstructure and Solidification Path of AgCuZnNi Brazing Alloy |
| 投稿时间：2016-02-16 |
| DOI： |
| 中文关键词: 金属材料 AgCuZnNi合金 显微组织 相结构 凝固路径 |
| 英文关键词: metal materials AgCuZnNi alloy microstructure phase structure solidification path |
| 基金项目:稀贵金属先进材料协同创新中心协同创新基金(2014XT03)、稀贵金属综合利用新技术国家重点实验室开放课题(SKL-SPM-201545)。 |
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| 中文摘要: |
| 采用扫描电子显微镜、能谱仪以及X射线衍射等技术，对Ag-18Cu-30Zn-2Ni合金的铸态组织、相组成及结构进行了分析。结果表明，合金主要由白色基体、细小片层状共晶胞及直径为2~6 μm的黑色颗粒相组成；铸态合金的物相组成为面心立方(fcc)晶格结构的Ag基固溶体相、灰色层状共晶相(Ag+Cu64Zn36)及简单立方(sc)晶格结构的近球形黑色颗粒Cu2NiZn相；AgCuZnNi合金的平衡凝固路径为:L→ L+γ→ (L+α1)+γ→ ((α2+β)+α1) +γ。 |
| 英文摘要: |
| Microstructure and phase structure of as-cast Ag-18Cu-30Zn-2Ni alloy were investigated by means of scanning electron microscope (SEM), energy disperse spectroscopy (EDS) and X-ray diffractometer (XRD). The results indicate that the alloy is mainly composed of the white matrix, fine lamellar eutectic cell and black particles with diameter ranges from 2 to 6 μm. The composition and structure of phases is as below: Ag-based solid solution with face-centered-cubic (fcc) lattice structure, grey lamellar eutectic cell (Ag+Cu64Zn36, fcc) and spherical particle Cu2NiZn with simple-cubic (sc) structure. By combining all the analysis results, solidification path of the AgCuZnNi alloys is obtained: L→L+γ→(L+α1)+γ→((α2+β)+α1) +γ. |
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