Al及Al-Re高速电弧喷涂层性能的研究  

Study on Property of Al Coating and Al-RE Coating Produced by High Velocity Arc Spraying

作　　者：徐小平[1] 马世宁[1] 胡军志[1] 

机构地区：[1]装甲兵工程学院表面工程研究所,北京100072

出　　处：《表面技术》2005年第3期25-26,29,共3页Surface Technology

摘　　要：　对高速电弧喷涂(HVAS)与普通电弧喷涂铝及铝稀土涂层进行了对比实验研究。结果表明,稀土元素的加入明显改善了涂层与基体的结合性能,降低了铝合金涂层的孔隙率,同时,铝合金涂层的孔隙率也受铝稀土丝材加工工艺的影响;高速电弧喷涂铝稀土材料时,涂层具有结合强度高、硬度高、孔隙率低、组织致密等特点。A comparative experiment was taken to study the properties of Al coating and Al-RE coating produced by high velocity arc spraying and arc spraying respectively. The results indicate that, because of the adding of RE element, the adhension between coating and substrate is improved greatly, and the porosity of Al alloy coating is decreased, in addition, the porosity of Al alloy coating is also affected by the working of Al-RE wire; when using high velocity arc spraying technology to spray Al-RE wire, the produced coating has the properties such as high adhension strength,high hardness,low porosity and dense microstructure.

关 键 词：高速电弧喷涂 稀土元素 工艺性能 

分 类 号：TQ639.2[化学工程—精细化工]