钼表面包埋渗铝的组织研究  

Study on the Microstructure of Embedding Aluminum Infiltration on Molybdenum Surface

作　　者：李琳 赵彦辉 李慧 徐忻垚 刘恩泽[3] 宁礼奎[3] 谭政[3] 李海英 佟健[3] 刘伟华[3] LI Lin;ZHAO Yan-hui;LI Hui;XU Xin-yao;LIU En-ze;NING Li-kui;TAN Zheng;LI Hai-ying;TONG Jian;LIU Wei-hua(China Aviation Engine Power Co.,Ltd.,Xi An 710021,China;Queen Mary University of London Engineering School,NPU,Xi An 710129,China;Institute of Metal Research,CAS,Shenyang 110016,China)

机构地区：[1]中国航发动力股份有限公司,陕西西安710021 [2]西北工业大学伦敦玛丽女王大学工程学院,陕西西安710129 [3]中国科学院金属研究所,辽宁沈阳110016

出　　处：《有色矿冶》2023年第6期44-46,51,共4页Non-Ferrous Mining and Metallurgy

摘　　要：采用气氛反应炉在金属钼表面进行包埋渗铝,利用扫描电镜观察样品的截面形貌,利用XRD分析了样品的表面物相组成,利用电子探针测定微区成份。研究发现经过900℃,不同时间的保温处理后,在钼表面形成了三层铝化物渗层,最外层为Al_(17)Mo_(4)/Al_(22)Mo_(5),中间层为Al_(3)Mo,最内层为Al_(8)Mo_(3),随时间增加,渗层整体厚度增加,其中主要是Al_(8)Mo_(3)层的厚度增加,Al_(17)Mo_(4)/Al_(22)Mo_(5)层和Al_(3)Mo层厚基本不变。Aluminum infiltration was carried out on the surface of pure molybdenum by using an atmosphere reaction furnace.The cross-sectional morphology of the samples was observed by scanning electron microscopy,and the surface phase composition of the samples was analyzed by XRD.The micro-area composition was determined by electron probe.It was found that after a 900℃insu-lation treatment for different times,three layers of aluminum compounds were formed on the surface of the molybdenum matrix.The outermost layer was Al_(17)Mo_(4)/Al_(22)Mo_(5),the middle layer was Al_(3)Mo,and the innermost layer was Al_(8)Mo_(3).With the increase of time,the overall thickness of the coating increased,mainly due to the increase in the thickness of the Al_(8)Mo_(3)layer,while the thick-ness of the Al_(17)Mo_(4)/Al_(22)Mo_(5)layer and the Al_(3)Mo layer remained basically unchanged.

关 键 词：钼 包埋渗铝 铝化物 

分 类 号：TG146[一般工业技术—材料科学与工程]