真空雾化CoCrAlTaY热喷涂粉末的特性及其涂层的结合强度  

Characteristics of CoCrAlTaY Thermal Spray Powder and Adhesive Strength of Coating

作　　者：胡敦芫[1] 陈美英[1] 于月光[1] 曾克里[1] 任先京[1] 王虎年[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《有色金属（冶炼部分）》2006年第z1期25-27,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：采用真空雾化制备了CoCrAlTaY高温合金粉末。结果表明:该合金粉末呈球形,粉末粒度呈近正态分布,粉末由CoAl、γ、Cr27C3和TaC相组成;合金粉末涂层与基体结合良好,其结合力达到52 MPa。CoCrAlTaY alloy powders have been produced by means of gas atomization technique.The results show that the powder microstructure is composed of CoAl、γ、Cr_(27)C_3 and TaC phases and the mean size of powders is 48 μm with a nearly spherical morphology.The adhesive strength of coating by detonation gun spraying is up to 52 MPa.

关 键 词：CoCrAlTaY合金 真空雾化 粉末特性 涂层 结合强度 

分 类 号：TG132.3+2[一般工业技术—材料科学与工程]