Microsegregation behavior of Inconel 718 superalloy prepared by electron beam smelting layered solidification technology

2020 ◽  
Vol 833 ◽  
pp. 155019 ◽  
Author(s):  
Longhai Zhao ◽  
Yi Tan ◽  
Shuang Shi ◽  
Xiaogang You ◽  
Pengting Li ◽  
...  
Keyword(s):  
Electron Beam ◽  
Inconel 718 ◽  
Inconel 718 Superalloy ◽  
Solidification Technology

Evaporation behavior of Ni, Cr and Fe in Inconel 718 superalloy during electron beam smelting

Vacuum ◽  
2017 ◽  
Vol 135 ◽  
pp. 135-141 ◽  
Author(s):  
Qifan You ◽  
Shuang Shi ◽  
Xiaogang You ◽  
Yi Tan ◽  
Yinong Wang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Inconel 718 ◽  
Inconel 718 Superalloy

scholarly journals Study of ultrasonic vibration–assisted thread turning of Inconel 718 superalloy

2019 ◽  
Vol 11 (10) ◽  
pp. 168781401988377
Author(s):  
Yu He ◽  
Zhongming Zhou ◽  
Ping Zou ◽  
Xiaogang Gao ◽  
Kornel F Ehmann
Keyword(s):  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Inconel 718 ◽  
Gas Turbines ◽  
Tool Path ◽  
Machining Parameters ◽  
Thread Cutting ◽  
Workpiece Surface ◽  
Inconel 718 Superalloy ◽  
The Relationship

With excellent properties, high-temperature superalloys have become the main application materials for aircraft engines, gas turbines, and many other devices. However, superalloys are typically difficult to machine, especially for the thread cutting. In this article, an ultrasonic vibration–assisted turning system is proposed for thread cutting operations in superalloys. A theoretical analysis of ultrasonic vibration–assisted thread cutting is carried out. An ultrasonic vibration–assisted system was integrated into a standard lathe to demonstrate thread turning in Inconel 718 superalloy. The influence of ultrasonic vibration–assisted machining on workpiece surface quality, chip shape, and tool wear was analyzed. The relationship between machining parameters and ultrasonic vibration–assisted processing performance was also explored. By analyzing the motion relationship between tool path and workpiece surface, the reasons for improved workpiece surface quality by ultrasonic vibration–assisted machining were explained.

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