钛板表面激光熔覆锆基合金涂层的组织结构  

MICROSTRUCTURE OF LASER CLAD Zr-BASED COMPOSITE COATING

作　　者：王彦芳[1] 刘忆[2] 李刚[1] 王存山[1] 夏元良[1] 董闯[1] Sandip Bysakh 

机构地区：[1]大连理工大学三束材料改性国家重点实验室,大连116024 [2]辽宁工程技术大学材料科学与工程系,阜新123000 [3]Nanometerials Lab, Department of Metallurgy, India Institute of Science

出　　处：《复合材料学报》2003年第3期89-92,共4页Acta Materiae Compositae Sinica

摘　　要：　利用激光熔覆技术在Ti板上制备了非晶复合涂层,利用X射线衍射仪、能谱仪、扫描电镜和透射电子显微镜对熔覆层和结合区的组织结构进行了表征。研究发现,熔覆层组织主要由非晶、Zr的金属间化合物、氧化物及局部纳米晶组成。基体与熔覆层结合区由Ti的柱状晶和α(Ti/Zr)固溶体所构成,保证了基体与熔覆层之间有良好的冶金结合。A Zr-based amorphous composite coating was produced by laser cladding metal powder on a Ti substrate. The microstructure of the coating was studied using XRD, SEM, EDX and TEM. The coating consists of a mixture of intermetallic compounds, including a nanocrystal phase and an amorphous phase. The bonding zone between the substrate and the coating is composed of columnar Ti crystalline and α-type solid solution α-Ti/Zr. The chemical composition of the laser clad Zr-based composite coating is Zr-Al-Ni-Cu.

关 键 词：非晶 激光熔覆 ZR基非晶合金 金属间化合物 

分 类 号：TB331[一般工业技术—材料科学与工程]