Laser additive manufactured Ti–6Al–4V alloy: tribology and corrosion studies

Chandramohan, P.; Bhero, Shepherd; Obadele, Babatunde Abiodun; Olubambi, Peter Apata

doi:10.1007/s00170-017-0410-2

Cited by 65 publications

(41 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The investigations related to the corrosion of AM-prepared Ti alloys reviewed in this work are summarized in Table 6. [68][69]84,[113][114][115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131][132] The work performed by Dai, et al, 84,113 analyzes the corrosion characteristics of Ti6Al4V alloys produced by SLM in different chloride-containing media. The authors evaluated the corrosion of SLM Ti6Al4V by altering exposed planes to different electrolytes 84 and by post-build heat treatments.…”

Section: Titanium Alloysmentioning

confidence: 99%

“…Chandramohan, et al, 114 also investigated the effect of post-build heat treatments of SLM Ti6Al4V in 3.5 wt% NaCl. In accordance to the results obtained by Dai, et al, 113 there was an increased corrosion rate of SLM Ti6Al4V in 3.5 wt% when post-build heat treatments at 1,100°C and 900°C were performed for 1 h. The corrosion rates were measured and found to be 1.97 × 10 −4 (mm/y) for SLM Ti6Al4V with no heat treatment, 3.4 × 10 −4 (mm/y) for SLM Ti6Al4V heat treated at 1,100°C, and 5.9 × 10 −4 (mm/y) for SLM Ti6Al4V heat treated at 900°C.…”

Section: Titanium Alloysmentioning

confidence: 99%

See 1 more Smart Citation

Corrosion of Additively Manufactured Alloys: A Review

et al. 2018

View full text Add to dashboard Cite

Additive manufacturing (AM), often termed 3D printing, has recently emerged as a mainstream means of producing metallic components from a variety of metallic alloys. The numerous benefits of AM include net shape manufacturing, efficient use of material, suitability to low volume production runs, and the ability to explore alloy compositions not previously accessible to conventional casting. The process of AM, which is nominally performed using laser (or electron) based local melting, has a definitive role in the resultant alloy microstructure. Herein, the corrosion of alloys prepared by AM using laser and electronbased methods, relating the corrosion performance to the microstructural features influenced by AM processing, are reviewed. Such features include unique porosity, grain structures, dislocation networks, residual stress, solute segregation, and surface roughness. Correlations between reported results and deficiencies in present understanding are highlighted.

show abstract

Section: Titanium Alloysmentioning

confidence: 99%

Section: Titanium Alloysmentioning

confidence: 99%

Corrosion of Additively Manufactured Alloys: A Review

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Chandramohan et al (2017) [58] studied the friction and wear properties of DMLSed Ti6Al4V materials with different building directions (HB-horizontal built and VB-vertical built) after heat treatment (HT). Martensite was found in the β-phase matrix in the sintered Ti-6Al-4V microstructure, as shown in Figure 16.…”

Section: Ti and Titanium Alloymentioning

confidence: 99%

“…Microstructures of (a) sintered VB, (b) HT 1-VB and (c) HT 2-VB. Reproduced from[58], with permission from Springer Nature, 2017.…”

mentioning

confidence: 99%

See 1 more Smart Citation

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

Qin

Lan

et al. 2020

Metals

View full text Add to dashboard Cite

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.

show abstract

Development of Heat Treatments for Selective Laser Melting Ti6Al4V Alloy: Effect on Microstructure, Mechanical Properties, and Corrosion Resistance

Cecchel¹,

Ferrario²,

Cornacchia

et al. 2020

Adv Eng Mater

View full text Add to dashboard Cite

To evaluate the introduction of selective laser melting (SLM) for serial application, some features directly related to the components safety and performances are to be deeply analyzed. To this purpose, the present article applies three different types of heat treatment on Ti6Al4V as‐received samples produced by SLM: 1) annealing stress relieving, 2) solubilization super‐β transus, and 3) sub‐β transus followed by a tempering. Then, the related microstructures, mechanical resistance, residual stresses, and corrosion resistance are studied. The results identify a set of heat treatment parameters (super‐β transus followed by tempering), which guarantee the required properties. These samples show equiaxial grains composed of α + β phase, good mechanical properties, a high resistance to corrosion, and residual stresses almost null. Finally, this study confirms that Ti6Al4V made by SLM is applied in the transport field.

show abstract

Laser additive manufactured Ti–6Al–4V alloy: tribology and corrosion studies

Cited by 65 publications

References 24 publications

Corrosion of Additively Manufactured Alloys: A Review

Corrosion of Additively Manufactured Alloys: A Review

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

Development of Heat Treatments for Selective Laser Melting Ti6Al4V Alloy: Effect on Microstructure, Mechanical Properties, and Corrosion Resistance

Contact Info

Product

Resources

About