Strain Rate and Structure Dependent Behavior of Lattice Structures of a Titanium Alloy Fabricated by Selective Laser Melting

2021 ◽  
Author(s):  
N. Jin ◽  
Y. Wang ◽  
H. Cheng ◽  
X. Cheng ◽  
H. Zhang
Keyword(s):  
Titanium Alloy ◽  
Strain Rate ◽  
Selective Laser Melting ◽  
Lattice Structures ◽  
Laser Melting ◽  
Dependent Behavior

scholarly journals FUNCTIONALLY GRADED LATTICE STRUCTURES MADE FROM TITANIUM ALLOY BY SELECTIVE LASER MELTING

2019 ◽  
Author(s):  
Viktoria SOKOLOVA ◽  
Evgenii BORISOV ◽  
Vadim SUFIIAROV ◽  
Alexey ORLOV ◽  
Igor POLOZOV
Keyword(s):  
Titanium Alloy ◽  
Selective Laser Melting ◽  
Functionally Graded ◽  
Lattice Structures ◽  
Laser Melting ◽  
Graded Lattice

INVESTIGATION OF MICROSTRUCRE AND MECHANICAL PROPERTIES OF VT6 TITANIUM ALLOY LATTICE STRUCTURES PRODUCED BY SELECTIVE LASER MELTING

2019 ◽  
Vol 0 (5) ◽  
pp. 30-33
Author(s):  
V. Sufiiarov ◽  
◽  
E. Borisov ◽  
I. Polozov ◽  
V. Sokolova ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Selective Laser Melting ◽  
Lattice Structures ◽  
Laser Melting

Effect of laser rescanning on Ti6Al4V microstructure during selective laser melting

2020 ◽  
pp. 095440542097609
Author(s):  
Weipeng Duan ◽  
Meiping Wu ◽  
Jitai Han
Keyword(s):  
Wear Resistance ◽  
Titanium Alloy ◽  
Selective Laser Melting ◽  
Human Body ◽  
High Impact ◽  
Laser Melting ◽  
Heat Treated ◽  
Volume Porosity ◽  
Biomedical Field

TC4, which is one of the most widely used titanium alloy, is frequently used in biomedical field due to its biocompatible. In this work, selective laser melting (SLM) was used to manufacture TC4 parts and the printed parts were heat-treated using laser rescanning technology. The experimental results showed that laser rescanning had a high impact on the quality of SLMed part, and a different performance on wear resistance can be found on the basis. It can be seen that the volume porosity of the sample was 7.6 ± 0.5% without using any further processing technology. The volume porosity of the sample processed using laser rescanning strategy was decreased and the square-framed rescanning strategy had a relative optimal volume porosity (1.5 ± 0.3%) in all these five samples. With the further decreasing of volume porosity, the wear resistance decreased at the same time. As its excellent bio-tribological properties, the square-framed rescanning may be a potential suitable strategy to forming TC4 which used in human body.

Influence of Selective Laser Melting on the Microporosity of Cellular Materials Based on Ti6Al4V Titanium Alloy

2021 ◽  
Vol 41 (9) ◽  
pp. 871-873
Author(s):  
P. N. Kilina ◽  
L. D. Sirotenko ◽  
K. R. Muratov ◽  
T. R. Ablyaz
Keyword(s):  
Titanium Alloy ◽  
Selective Laser Melting ◽  
Cellular Materials ◽  
Laser Melting ◽  
Ti6al4v Titanium Alloy

Martensite decomposition during post-heat treatments and the aging response of near-α Ti–6Al–2Sn–4Zr–2Mo (Ti-6242) titanium alloy processed by selective laser melting (SLM)

2021 ◽  
pp. 2050018
Author(s):  
Haiyang Fan ◽  
Yahui Liu ◽  
Shoufeng Yang
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Titanium Alloys ◽  
Selective Laser Melting ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Aging Treatment ◽  
Water Quenching ◽  
Laser Melting ◽  
Aging Response

Ti–6Al–2Sn–4Zr–2Mo (Ti-6242), a near-[Formula: see text] titanium alloy explicitly designed for high-temperature applications, consists of a martensitic structure after selective laser melting (SLM). However, martensite is thermally unstable and thus adverse to the long-term service at high temperatures. Hence, understanding martensite decomposition is a high priority for seeking post-heat treatment for SLMed Ti-6242. Besides, compared to the room-temperature titanium alloys like Ti–6Al–4V, aging treatment is indispensable to high-temperature near-[Formula: see text] titanium alloys so that their microstructures and mechanical properties are pre-stabilized before working at elevated temperatures. Therefore, the aging response of the material is another concern of this study. To elaborate the two concerns, SLMed Ti-6242 was first isothermally annealed at 650[Formula: see text]C and then water-quenched to room temperature, followed by standard aging at 595[Formula: see text]C. The microstructure analysis revealed a temperature-dependent martensite decomposition, which proceeded sluggishly at [Formula: see text]C despite a long duration but rapidly transformed into lamellar [Formula: see text] above the martensite transition zone (770[Formula: see text]C). As heating to [Formula: see text]C), it produced a coarse microstructure containing new martensites formed in water quenching. The subsequent mechanical testing indicated that SLM-built Ti-6242 is excellent in terms of both room- and high-temperature tensile properties, with around 1400 MPa (UTS)[Formula: see text]5% elongation and 1150 MPa (UTS)[Formula: see text]10% elongation, respectively. However, the combination of water quenching and aging embrittled the as-built material severely.

scholarly journals Damping behavior of 316L lattice structures produced by Selective Laser Melting

2018 ◽  
Vol 160 ◽  
pp. 1010-1018 ◽  
Author(s):  
Francesco Rosa ◽  
Stefano Manzoni ◽  
Riccardo Casati
Keyword(s):  
Selective Laser Melting ◽  
Lattice Structures ◽  
Laser Melting ◽  
Damping Behavior
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