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

作　　者：金青林[1] 刘恩典 李再久[1,2] 李飞 JIN Qinglin;LIU Endian;LI Zaijiu;LI Fei(School of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;School of Civil Aviation and Aeronautics,Kunming University of Science and Technology,Kunming 650500,China;City College,Kunming University of Science and Technology,Kunming 650051,China)

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]昆明理工大学民航与航空学院,云南昆明650500 [3]昆明理工大学城市学院,云南昆明650051

出　　处：《铸造技术》2022年第2期99-102,共4页Foundry Technology

基　　金：国家自然科学基金(51464026,51864026,51964030);云南省级人才培养项目(KKSY201765025);云南省教育厅科学研究基金(2021J0048)。

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.

关 键 词：多孔金属 Gasar连铸工艺 CU-NI合金 糊状区 凝固模式 

分 类 号：TG146.1[一般工业技术—材料科学与工程]