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作 者:Chen Xiaohong Liu Ping Liu Xinkuan Ma Fengcang Li Wei Zhang Yi Tian Baohong
机构地区:[1]Shanghai Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China [2]Henan Univ Sci & Technol, Luoyang 471003, Peoples R China
出 处:《稀有金属材料与工程》2012年第S1期228-230,共3页Rare Metal Materials and Engineering
基 金:Basic Research Priorities Program of the Science and Technology Committee of Shanghai(03JC14063);Shanghai Leading Academic Discipline Project(J50503);Innovative Program of the Education Commission of Shanghai(11YZ112)
摘 要:Aluminum was deposited by diffusion into Cu-Al-Y alloy substrates by the pack-cementation process.Diffusion was carried out in two kinds of container with pot-type and can-type,and the results are presented.The effects of various time and temperature on the coating characteristics of Cu-Al-Y was also investigated.The result shows that the diffusion layer is nearly 170-200μm in thickness by aluminizing treatment at 900-950℃for 6-8 h in pot-type container.The aluminized layers were observed by a scanning electron micrograph(SEM),we can found:A uniform coating was achieved on Cu-Al-Y alloy surface,relatively uniform thickness and even interfaces between the layers and the substrate.The diffusion coefficient of Al in Cu-Al-Y alloys at 900℃in pot-type container can be calculated is 3.65×10-12 m 2 /s.Aluminum was deposited by diffusion into Cu-Al-Y alloy substrates by the pack-cementation process.Diffusion was carried out in two kinds of container with pot-type and can-type,and the results are presented.The effects of various time and temperature on the coating characteristics of Cu-Al-Y was also investigated.The result shows that the diffusion layer is nearly 170-200μm in thickness by aluminizing treatment at 900-950℃for 6-8 h in pot-type container.The aluminized layers were observed by a scanning electron micrograph(SEM),we can found:A uniform coating was achieved on Cu-Al-Y alloy surface,relatively uniform thickness and even interfaces between the layers and the substrate.The diffusion coefficient of Al in Cu-Al-Y alloys at 900℃in pot-type container can be calculated is 3.65×10-12 m 2 /s.
关 键 词:Cu-Al-Y ALLOY aluminized layer DIFFUSION COEFFICIENT
分 类 号:TG146.4[一般工业技术—材料科学与工程]
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