材料科学
微观结构
超声波传感器
镜头(地质)
制作
复合材料
多孔性
振动
激光器
粒度
光学
声学
医学
物理
病理
替代医学
作者
Fuda Ning,Weilong Cong
标识
DOI:10.1016/j.matlet.2016.05.055
摘要
This paper studied fabrication of Fe-Cr stainless steel parts using the novel ultrasonic vibration-assisted laser engineered net shaping (UV-A LENS) process and investigated the effects of ultrasonic vibration on the microstructures and mechanical properties. The results showed that cross-sectional morphology as well as internal microstructure of the parts were changed by applying ultrasonic vibration in LENS process. Porosity, micro-cracks, and microstructural grain size were remarkably decreased due to the actions and influences of ultrasonic vibration. In addition, mechanical properties of the parts fabricated by UV-A LENS process were significantly improved compared with that of the parts fabricated by LENS without ultrasonic vibration. These findings indicated that UV-A LENS was an effective process to generate uniform morphology and fine microstructures to improve the mechanical properties of the parts.
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