摘要
提出了一种钛合金电子束毛化技术实现方法。借助于新型电子束扫描控制系统,通过扫描波形的特殊设计,可以实现电子束毛化技术,从而在金属表面产生高约几毫米的毛刺。利用这种实现方法,通过选取不同的扫描波形和扫描频率获得了各种不同的毛刺形貌,并进行了毛刺的组织分析。结果表明:六边汇聚型扫描波形毛化效果最理想,而合适的扫描频率同样也是产生毛化形貌的关键。毛刺的微观组织区域分成了边缘区、中心区、热影响区和母材。
The realization method of electron beam surfi-sculpt on Ti-6Al-4V alloy was studied. Surfi-sculpt could be obtained by tailored scanning waveform based on the new scanning control system, and then the protrusions with no less than 2 mm in height were got on the metal surface. By the method, the different profiles of the protrusions were tried from different scanning waveforms and frequencies and the microstructure of protrusions was analyzed. The results show that six lines meeting wavcform is the best way to get protrusions, while proper frequency is also a key factor to realize the surfi-sculpt process. The microstructure of the protrusion could be divided into four parts, which are edge zone, central zone, HAZ and base metal.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2014年第4期819-822,共4页
Rare Metal Materials and Engineering
基金
The National Nature Science Foundation of China(50975268,50935008)
Aeronautical Science Foundation of China(2008ZE25010)
关键词
电子束毛化
扫描波形和频率
毛刺
六边型汇聚
微观组织
electron beam surfi-sculpt
scanning waveform and frequency
protrusion
six lines meeting
microstructure
