Selective laser melting of Ti–35Nb composite from elemental powder mixture: Microstructure, mechanical behavior and corrosion behavior

This paper presents the results of the study of Selective Laser Melting (SLM) process for the in-situ synthesis of Ti-6Al-4V alloy from elemental powder mixture. Elemental spherical powders of Ti, Al and V were used to prepare a powder mixture, and then bulk specimens were produced by SLM using different process parameters. The effects of SLM process parameters on samples’ relative density, their chemical composition, the formed microstructure and microhardness before and after heat treatment have been studied. It was shown that volume energy density during the SLM process significantly effects the microstructure and microhardness of Ti-6Al-4V obtained from elemental powders. The difference in microstructure morphology and microhardness remains after heat treatment.

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Microstructure and strength analysis of eutectic Al-Si alloy in-situ manufactured using selective laser melting from elemental powder mixture

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2016.08.249 ◽

2017 ◽

Vol 691 ◽

pp. 316-322 ◽

Cited By ~ 57

Author(s):

Nan Kang ◽

Pierre Coddet ◽

Lucas Dembinski ◽

Hanlin Liao ◽

Christian Coddet

Keyword(s):

Selective Laser Melting ◽

Powder Mixture ◽

Elemental Powder ◽

Strength Analysis ◽

Laser Melting ◽

Elemental Powder Mixture

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Microstructural homogeneity and mechanical behavior of a selective laser melted Ti-35Nb alloy produced from an elemental powder mixture

Journal of Material Science and Technology ◽

10.1016/j.jmst.2020.05.052 ◽

2021 ◽

Vol 61 ◽

pp. 221-233 ◽

Cited By ~ 2

Author(s):

Jincheng Wang ◽

Yujing Liu ◽

Chirag Dhirajlal Rabadia ◽

Shun-Xing Liang ◽

Timothy Barry Sercombe ◽

...

Keyword(s):

Mechanical Behavior ◽

Powder Mixture ◽

Elemental Powder ◽

Elemental Powder Mixture ◽

Microstructural Homogeneity ◽

35Nb Alloy

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Comparison of microstructure and mechanical behavior of Ti-35Nb manufactured by laser powder bed fusion from elemental powder mixture and prealloyed powder

Journal of Material Science and Technology ◽

10.1016/j.jmst.2021.07.021 ◽

2022 ◽

Vol 105 ◽

pp. 1-16

Author(s):

J.C. Wang ◽

Y.J. Liu ◽

S.X. Liang ◽

Y.S. Zhang ◽

L.Q. Wang ◽

...

Keyword(s):

Mechanical Behavior ◽

Powder Mixture ◽

Elemental Powder ◽

Powder Bed Fusion ◽

Laser Powder Bed Fusion ◽

Prealloyed Powder ◽

Powder Bed ◽

Elemental Powder Mixture

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Effect of Selective Laser Melting Process Parameters and Heat Treatment on Microstructure and Properties of Titanium Alloys Produced from Elemental Powders

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.822.549 ◽

2019 ◽

Vol 822 ◽

pp. 549-555

Author(s):

Igor A. Polozov ◽

Evgenii Borisov ◽

Vera Popovich

Keyword(s):

Heat Treatment ◽

Energy Density ◽

Selective Laser Melting ◽

Powder Mixture ◽

Melting Process ◽

Laser Melting ◽

Before And After ◽

Volume Energy ◽

Elemental Powder Mixture

This work investigates the Selective Laser Melting (SLM) process for the in-situ synthesis of Ti-5Al and Ti-6Al-4V alloys using elemental powder mixture. Elemental spherical powders were used to prepare a powder mixture and then samples were produced by SLM using different volume energy density. The effects of volume energy density during SLM on samples’ relative density, chemical composition, microstructure and microhardness before and after heat treatment have been studied. It was shown that volume energy density during the SLM process significantly effects the density, microstructure of Ti-5Al and Ti-6Al-4V alloys, as well as, the microhardness of Ti-6Al-4V obtained from elemental powders.

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