Surface morphology of 321 stainless steel obtained by electron-beam wire-feed additive manufacturing technology

2018 ◽  
Author(s):  
T. A. Kalashnikova ◽  
E. S. Khoroshko ◽  
A. V. Chumaevskii ◽  
A. V. Filippov
Keyword(s):  
Stainless Steel ◽  
Electron Beam ◽  
Additive Manufacturing ◽  
Surface Morphology ◽  
Manufacturing Technology ◽  
Feed Additive ◽  
Additive Manufacturing Technology ◽  
Wire Feed

scholarly journals Joining of Inconel 718 and 316 Stainless Steel using electron beam melting additive manufacturing technology

2016 ◽  
Vol 94 ◽  
pp. 17-27 ◽  
Author(s):  
Alejandro Hinojos ◽  
Jorge Mireles ◽  
Ashley Reichardt ◽  
Pedro Frigola ◽  
Peter Hosemann ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electron Beam ◽  
Additive Manufacturing ◽  
Inconel 718 ◽  
Electron Beam Melting ◽  
Manufacturing Technology ◽  
316 Stainless Steel ◽  
Additive Manufacturing Technology

scholarly journals Titanium Alloy Repair with Wire-Feed Electron Beam Additive Manufacturing Technology

2019 ◽  
Vol 2019 ◽  
pp. 1-23 ◽  
Author(s):  
P. Wanjara ◽  
K. Watanabe ◽  
C. de Formanoir ◽  
Q. Yang ◽  
C. Bescond ◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Three Dimensional ◽  
Manufacturing Technology ◽  
Image Correlation ◽  
Fatigue Properties ◽  
Wall Structure ◽  
Operational Environment ◽  
Additive Manufacturing Technology ◽  
Wire Feed

Wire feeding can be combined with different heat sources, for example, arc, laser, and electron beam, to enable additive manufacturing and repair of metallic materials. In the case of titanium alloys, the vacuum operational environment of electron beam systems prevents atmospheric contamination during high-temperature processing and ensures high performance and reliability of additively manufactured or repaired components. In the present work, the feasibility of developing a repair process that emulates refurbishing an “extensively eroded” fan blade leading edge using wire-feed electron beam additive manufacturing technology was examined. The integrity of the Ti6Al4V wall structure deposited on a 3 mm thick Ti6Al4V substrate was verified using X-ray microcomputed tomography with a three-dimensional reconstruction. To understand the geometrical distortion in the substrate, three-dimensional displacement mapping with digital image correlation was undertaken after refurbishment and postdeposition stress relief heat treatment. Other characteristics of the repair were examined by assessing the macro- and microstructure, residual stresses, microhardness, tensile and fatigue properties, and static and dynamic failure mechanisms.

Controlling the porosity using exponential decay heat input regimes during electron beam wire-feed additive manufacturing of Al-Mg alloy

2020 ◽  
Vol 108 (9-10) ◽  
pp. 2823-2838 ◽  
Author(s):  
V. R. Utyaganova ◽  
Andrey V. Filippov ◽  
N. N. Shamarin ◽  
A. V. Vorontsov ◽  
N. L. Savchenko ◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Exponential Decay ◽  
Heat Input ◽  
Mg Alloy ◽  
Feed Additive ◽  
Decay Heat ◽  
Wire Feed

An in-situ monitoring system for electron beam wire-feed additive manufacturing

2020 ◽  
Vol 307 ◽  
pp. 111983 ◽  
Author(s):  
Jiaqi Guo ◽  
Anguo Huang ◽  
Renzhi Hu ◽  
Haiying Xu ◽  
Guang Yang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Monitoring System ◽  
In Situ Monitoring ◽  
Feed Additive ◽  
Wire Feed

scholarly journals Effect of nano TiC on microstructure and microhardness of composite additive manufacturing 316L stainless steel

2021 ◽  
Author(s):  
Weiguang Yang ◽  
Xi Wang ◽  
Hai Zhou ◽  
Ti Zhou
Keyword(s):  
Stainless Steel ◽  
Additive Manufacturing ◽  
316L Stainless Steel ◽  
Surface Hardness ◽  
Lower Surface ◽  
Element Distribution ◽  
Manufacturing Technology ◽  
Steel Matrix ◽  
Hardness Tester ◽  
Additive Manufacturing Technology

Abstract The lower surface hardness limits the further application of 316 L stainless steel. In this study, selective laser melting (SLM)/laser metal deposition (LMD) composite additive manufacturing technology was used to prepare five kinds of 316L-nano-TiC cermet strengthening layers on the surface of 316L stainless steel, and to study the effect of nano-TiC particle content on the microstructure and the influence of microhardness. Use Laser microscope, scanning electron microscope (SEM), X-ray diffractometer (XRD) to analyze the structure, element distribution and phase composition of the strengthening layer. The hardness of the strengthened layer was analyzed using a Vickers micro-hardness tester. The study found that the composite SLM/LMD formed samples changed continuously from LMD forming to SLM forming, showing good metallurgical bonding. Diffusion of TiC particles was observed in the SLM strengthening layer, and TiC phase was detected in the strengthening layer. Compared with the 316L matrix, the microhardness of the strengthened layer is significantly improved. When 50wt% TiC is added, the average hardness of the strengthened layer is 1.9 times that of the 316L matrix, and the highest is 408.9HV. The results of this study show that the strengthening layer manufactured by composite additive materials can effectively improve the hardness of the 316L stainless steel matrix. As the content of nano-TiC in the preset powder increases, the microhardness of the strengthening layer first increases and then decreases, and the hardness of the 50wt% TiC strengthening layer is the highest. There are distributed nano-TiC particles in the structure of the strengthening layer, and the distribution of nano-TiC particles in the 50wt% TiC strengthening layer is more uniform than other samples. This research provides a new reference for the strengthening of 316L stainless steel through SLM/LMD composite additive manufacturing technology and the addition of nano-TiC particles.

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