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10.3390/ma11050763
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Article

Influence of Manufacturing Parameters on Microstructure and Hydrogen Sorption Behavior of Electron Beam Melted Titanium Ti-6Al-4V Alloy

by
Natalia Pushilina
1,
Maxim Syrtanov
1,
Egor Kashkarov
1,*,
Tatyana Murashkina
1,
Viktor Kudiiarov
1,
Roman Laptev
1,
Andrey Lider
1 and
Andrey Koptyug
2
1
School of Nuclear Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
2
Sports Tech Research Centre, Mid Sweden University, Akademigatan 1, SE-831 25 Östersund, Sweden
*
Author to whom correspondence should be addressed.
Materials 2018, 11(5), 763; https://doi.org/10.3390/ma11050763
Submission received: 9 April 2018 / Revised: 26 April 2018 / Accepted: 7 May 2018 / Published: 10 May 2018
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Abstract

Influence of manufacturing parameters (beam current from 13 to 17 mA, speed function 98 and 85) on microstructure and hydrogen sorption behavior of electron beam melted (EBM) Ti-6Al-4V parts was investigated. Optical and scanning electron microscopies as well as X-ray diffraction were used to investigate the microstructure and phase composition of EBM Ti-6Al-4V parts. The average α lath width decreases with the increase of the speed function at the fixed beam current (17 mA). Finer microstructure was formed at the beam current 17 mA and speed function 98. The hydrogenation of EBM Ti-6Al-4V parts was performed at the temperatures 500 and 650 °С at the constant pressure of 1 atm up to 0.3 wt %. The correlation between the microstructure and hydrogen sorption kinetics by EBM Ti-6Al-4V parts was demonstrated. Lower average hydrogen sorption rate at 500 °C was in the sample with coarser microstructure manufactured at the beam current 17 mA and speed function 85. The difference of hydrogen sorption kinetics between the manufactured samples at 650 °C was insignificant. The shape of the kinetics curves of hydrogen sorption indicates the phase transition αH + βH→βH.
Keywords: electron beam melting; additive manufacturing; titanium Ti-6Al-4V alloy; hydrogen electron beam melting; additive manufacturing; titanium Ti-6Al-4V alloy; hydrogen

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MDPI and ACS Style

Pushilina, N.; Syrtanov, M.; Kashkarov, E.; Murashkina, T.; Kudiiarov, V.; Laptev, R.; Lider, A.; Koptyug, A. Influence of Manufacturing Parameters on Microstructure and Hydrogen Sorption Behavior of Electron Beam Melted Titanium Ti-6Al-4V Alloy. Materials 2018, 11, 763. https://doi.org/10.3390/ma11050763

AMA Style

Pushilina N, Syrtanov M, Kashkarov E, Murashkina T, Kudiiarov V, Laptev R, Lider A, Koptyug A. Influence of Manufacturing Parameters on Microstructure and Hydrogen Sorption Behavior of Electron Beam Melted Titanium Ti-6Al-4V Alloy. Materials. 2018; 11(5):763. https://doi.org/10.3390/ma11050763

Chicago/Turabian Style

Pushilina, Natalia, Maxim Syrtanov, Egor Kashkarov, Tatyana Murashkina, Viktor Kudiiarov, Roman Laptev, Andrey Lider, and Andrey Koptyug. 2018. "Influence of Manufacturing Parameters on Microstructure and Hydrogen Sorption Behavior of Electron Beam Melted Titanium Ti-6Al-4V Alloy" Materials 11, no. 5: 763. https://doi.org/10.3390/ma11050763

APA Style

Pushilina, N., Syrtanov, M., Kashkarov, E., Murashkina, T., Kudiiarov, V., Laptev, R., Lider, A., & Koptyug, A. (2018). Influence of Manufacturing Parameters on Microstructure and Hydrogen Sorption Behavior of Electron Beam Melted Titanium Ti-6Al-4V Alloy. Materials, 11(5), 763. https://doi.org/10.3390/ma11050763

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