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Ni 含量对 Gasar 连铸多孔 Cu-Ni 合金 气孔结构的影响
Effect of Ni Content on Pore Structure of Porous Cu-Ni Alloys with the Gasar Continuous Casting Process
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- DOI:
- 作者:
- 金青林 1 ，刘恩典 1 ，李再久 1 ， 2 ，李 飞 1 ， 3
JIN Qinglin 1 , LIU Endian 1 , LI Zaijiu 1,2 , LI Fei 1,3
- 作者单位:
- 1. 昆明理工大学 材料科学与工程学院；2. 昆明理工大学 民航与航空学院；3. 昆 明理工大学 城市学院
1. School of Materials Science and Engineering, Kunming University of Science and Technology; 2. School of Civil Aviation and Aeronautics, Kunming University of Science and Technology; 3. City College, Kunming University of Science and Technology
- 关键词:
- 多孔金属； Gasar 连铸工艺； Cu-Ni 合金；糊状区；凝固模式
porous metal; Gasar continuous casting process; Cu-Ni alloys; mushy zone; solidification mode
- 摘要:
- 采用自制的 Gasar 连铸装置，以不同 Ni 含量的 Cu-Ni 合金试样为原材料，制备了藕状多孔 Cu-Ni 合金，研
究了 Ni 含量对试样中气孔结构的影响。 结果表明，较低的 Ni 含量对气孔结构的影响较小，而随 Ni 含量的进一步增加，
多孔 Cu-Ni 合金气孔结构的规则性和均匀性逐渐恶化。 合金凝固模式的改变和糊状区宽度增加是多孔 Cu-Ni 合金气孔
结构变化的主要原因。
The lotus-type porous Cu-Ni alloy was prepared with Cu-Ni alloy samples with different Ni content in Gasar
continuous casting device. The effect of Ni content on the pore structure of the samples was studied. The results show that
low Ni content has little effect on pore structure, while with the further increase of Ni content, the regularity and uniformity
of pore structure of porous Cu-Ni alloy gradually deteriorate. The change of solidification mode and the increase of mushy
zone width are the main reasons for the change of pore structure in porous Cu-Ni alloy.