Effect of TiB2 addition on the microstructure and wear resistance of Ti-6Al-4V alloy fabricated through direct metal laser sintering (DMLS)

Patil, Aniruddha S.; Hiwarkar, Vijay; Verma, Pankaj; Khatirkar, Rajesh K.

doi:10.1016/j.jallcom.2018.10.308

Cited by 77 publications

(18 citation statements)

References 42 publications

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“…[ 56 ] The consolidation of SLS is obtained by processing the selected areas using the thermal energy supplied by a focused laser beam, which usually causes porosity in the materials. [ 57 ] SLM technology is developed from SLS with the aim of fully condensing materials. Compared with SLS, SLM method utilizes a higher laser energy density to achieve the full melting of powders ( Figure a).…”

Section: Fabrication Of Architecture Drtmcsmentioning

confidence: 99%

Multiscale Architecture and Superior High‐Temperature Performance of Discontinuously Reinforced Titanium Matrix Composites

Huang

et al. 2020

Advanced Materials

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Discontinuously reinforced titanium matrix composites (DRTMCs), as one of the most important metal matrix composites (MMCs), are expected to exhibit high strength, elastic modulus, high‐temperature endurability, wear resistance, isotropic property, and formability. Recent innovative research shows that tailoring the reinforcement network distribution totally differently from the conventional homogeneous distribution can not only improve the strengthening effect but also resolve the dilemma of DRTMCs with poor tensile ductility. Based on the network architecture, multiscale architecture, for example, two‐scale network and laminate‐network microstructure can further inspire superior strength, creep, and oxidation resistance at elevated temperatures. Herein, the most recent developments, which include the design, fabrication, microstructure, high‐temperature performance, strengthening mechanisms, and future research opportunities for DRTMCs with multiscale architecture, are captured. In this regard, the service temperature can be increased by 200 °C, and the creep rupture time by 59‐fold compared with those of conventional titanium alloys, which can meet the urgent demands of lightweight nickel‐based structural materials and potentially replace nickel base superalloys at 600–800 °C to reduce weight by 45%. In fact, multiscale architecture design strategy will also favorably open a new era in the research of extensive metallic materials for improved performances.

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Section: Fabrication Of Architecture Drtmcsmentioning

confidence: 99%

Multiscale Architecture and Superior High‐Temperature Performance of Discontinuously Reinforced Titanium Matrix Composites

Huang

et al. 2020

Advanced Materials

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“…Oxidation wear is an important reason for the low wear rate of the alloy. Patil et al (2019) [61] investigated the friction behavior of DMLSed Ti6Al4V with addition of varying amount of TiB2 on pin-on-disk tribometer. The uniformly dispersed TiB strengthens the Ti6Al4V alloy, which refines the grains and improves the hardness.…”

Section: Ti and Titanium Alloymentioning

confidence: 99%

Wear Performance of Metal Materials Fabricated by Powder Bed Fusion: A Literature Review

Qin

Lan

et al. 2020

Metals

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Powder Bed Fusion (PBF) is an additive manufacturing technology used to produce metal-based materials. PBF materials have a unique microstructure as a result from repeated and sharp heating/cooling cycles. Many researches have been carried out on relations between processing parameters of the PBF technology, obtained microstructures and mechanical properties. However, there are few studies on the tribological properties of PBF materials at various contact conditions. This article describes previous and recent studies related to the friction performance. This is a critical aspect if PBF materials are applied to friction pair components. This paper discusses wear rates and wear mechanisms of PBF materials under dry friction, boundary lubrication and micro-motion conditions. PBF materials have higher hardness due to fine grains. PBF materials have a higher wear resistance than traditional materials due to their solid solution strengthening. In addition, hard particles on the surface of PBF components can effectively reduce wear. The reasonable combination of process parameters can effectively improve the density of parts and thus further improve the wear resistance. This review paper summarized the wear behavior of PBF materials, the wear mechanism of metal materials from dry friction to different lubrication conditions, and the wear behavior under fretting wear. This will help to control the processing parameters and material powder composition of parts, so as to achieve the required material properties of parts and further improve the wear performance.

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“…During the wear test, this avoids the possibility of easy detachment of TiB whiskers. This reduces the wear rate significantly but not the COF, because the detached particles are few and it is not present enough third part that reduces significantly the friction [27].…”

Section: Ti 6 Al 4 Vmentioning

confidence: 99%

Tribological and Wear Behavior of Metal Alloys Produced by Laser Powder Bed Fusion (LPBF)

Lorusso¹

2019

Friction, Lubrication and Wear

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Laser powder bed fusion (LPBF) is an additive manufacturing technique for the production of parts with complex geometry, and it is especially appropriate for structural applications in aircraft and automotive industries. Wear is the most important cause of malfunction of mechanical systems. Abrasive wear accounts for 50% of wear in industrial situations, and it is most common in components of machines. LPBF is very attractive due to its extremely high melting and solidification rates that make possible to obtain materials with particular tribological and wear behavior than those by traditional manufacturing routes. The aim of this chapter is to investigate the different behaviors of principal metallic alloys by LPBF.

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Effect of TiB2 addition on the microstructure and wear resistance of Ti-6Al-4V alloy fabricated through direct metal laser sintering (DMLS)

Cited by 77 publications

References 42 publications

Multiscale Architecture and Superior High‐Temperature Performance of Discontinuously Reinforced Titanium Matrix Composites

Multiscale Architecture and Superior High‐Temperature Performance of Discontinuously Reinforced Titanium Matrix Composites

Wear Performance of Metal Materials Fabricated by Powder Bed Fusion: A Literature Review

Tribological and Wear Behavior of Metal Alloys Produced by Laser Powder Bed Fusion (LPBF)

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