欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
试验涂层材料采用亚微米级TiC和铬的复合碳化物作为强化硬质相,Fe-Cr合金作为基础粘结相,并加入质量分数为20%的Si元素,运用激光合金化技术,在球墨铸铁表面制备出高硬度的合金化层。通过扫描电镜,能谱分析、X光物相分析及显微硬度测定,对激光表面合金化层的显微组织及合金元素的分布进行了研究。试验结果表明,合金化层与基体实现了冶金结合,并形成了以莱氏体与马氏体为主的显微组织,激光合金化层中的细晶强化和固溶强化等强化作用使球铁表面的显微硬度得到了显著提高。
英文摘要：
Submicron Tic and complex carbides of Cr were used as hardening phase in the coating,and Fe-Cr alloy added with Si（wt%=20） as base phase.The laser alloying technology was applied to prepare high hardness alloyed layer on the surface of the ductile cast iron.The microstructure of laser alloyed coating and the distribution of alloying elements in laser alloyed coating were analyzed through observation of SEM,EDS,XRD and micro-hardometer.The experimental results revealed that the alloyed coating melted into the base metal and the layer made from martensite and ledeburite was generated.The microhardness of the surface of the ductile cast iron was reinforced due to grain refining strengthening and solid solution strengthening in laser alloyed coating.
同期刊论文项目
同项目期刊论文
期刊信息
位置：