摘要
通过对激光熔覆涂层反应体系ΔGT的计算及XRD分析得知:TiB2可以原位生成.EPMA表明:TiB2在涂层中弥散分布,涂层硬度显著提高.差热分析(DTA)对反应体系的研究表明:体系的升温速率和化学成分对TiB2的生成有一定影响.
Through the calculation of the laser cladding coating reaction system's ΔGT and XRD analysis, it was known that in-situ synthesized TiB2 could be produced in the coating. EPMA states that TiB2 disperses in the coating. Microhardness of the clad layer increases remarkably. DTA shows that the heating rate and the composition of the system affect the production of TiB2. Microstructure of the coating is dendrite at varying temperature.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2004年第3期402-406,共5页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目(59701001).
关键词
激光熔覆
原位生成
组织结构
差热分析
TIB2
金属基复合材料涂层
Cladding (coating)
In situ processing
Laser applications
Microstructure
Synthesis (chemical)
Thermodynamics
