Next Article in Journal
Integration of Simulation Driven DfAM and LCC Analysis for Decision Making in L-PBF
Next Article in Special Issue
Forming and Heat Treatment of Modern Metallic Materials
Previous Article in Journal
Effect of Inclusions on the Corrosion Properties of the Nickel-Based Alloys 718 and EP718
Previous Article in Special Issue
Experimental Investigations on the Effects of Rotational Speed on Temperature and Microstructure Variations in Incremental Forming of T6- Tempered and Annealed AA2219 Aerospace Alloy
Article

Investigation of the Effects of an Intense Pulsed Ion Beam on the Surface Melting of IN718 Superalloy Prepared with Selective Laser Melting

1
School of Energy and Power Engineering, Aircraft/Engine Integrated System Safety Beijing Key Laboratory, Beihang University, Beijing 100191, China
2
School of Physics, Beihang University, Beijing 100191, China
3
National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
4
School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
Metals 2020, 10(9), 1178; https://doi.org/10.3390/met10091178
Received: 23 June 2020 / Revised: 9 August 2020 / Accepted: 20 August 2020 / Published: 2 September 2020
(This article belongs to the Special Issue Forming and Heat Treatment of Modern Metallic Materials)
Intense pulsed ion beam irradiation on IN718 superalloy prepared with selective laser melting as an after-treatment for surface melting is introduced. It is demonstrated that intense pulsed ion beam composed of protons and carbon ions, with a maximum current density of 200 A/cm2 and a pulse length of 80 ns, can induce surface melting and the surface roughness changes significantly due to the generation of micro-defects and the flow of the molten surface. Irradiation experiments and thermal field simulation revealed that the energy density of the ion beam plays a predominant role in the irradiation effect—with low energy density, the flow of molten surface is too weak to smooth the fluctuations on the surface. With high energy density, the surface can be effectively melted and smoothened while micro-defects, such as craters, may be generated and can be flattened by an increased number of pulses. The research verified that for the surface melting with intense pulsed ion beam (IPIB), higher energy density should be used for stronger surface fluidity and a greater pulse number is also required for the curing of surface micro-defects. View Full-Text
Keywords: intense pulsed ion beam; superalloy; selective laser melting; surface melting; surface roughness intense pulsed ion beam; superalloy; selective laser melting; surface melting; surface roughness
Show Figures

Figure 1

MDPI and ACS Style

Min, M.; Ding, S.; Yu, X.; Zhang, S.; Zhong, H.; Remnev, G.E.; Le, X.; Zhou, Y. Investigation of the Effects of an Intense Pulsed Ion Beam on the Surface Melting of IN718 Superalloy Prepared with Selective Laser Melting. Metals 2020, 10, 1178. https://doi.org/10.3390/met10091178

AMA Style

Min M, Ding S, Yu X, Zhang S, Zhong H, Remnev GE, Le X, Zhou Y. Investigation of the Effects of an Intense Pulsed Ion Beam on the Surface Melting of IN718 Superalloy Prepared with Selective Laser Melting. Metals. 2020; 10(9):1178. https://doi.org/10.3390/met10091178

Chicago/Turabian Style

Min, Min, Shuiting Ding, Xiao Yu, Shijian Zhang, Haowen Zhong, Gennady E. Remnev, Xiaoyun Le, and Yu Zhou. 2020. "Investigation of the Effects of an Intense Pulsed Ion Beam on the Surface Melting of IN718 Superalloy Prepared with Selective Laser Melting" Metals 10, no. 9: 1178. https://doi.org/10.3390/met10091178

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop