Corrosion Behavior of Additive Manufactured Ti-6Al-4V Alloy in NaCl Solution

Yang, Jyh‐Shinn; Yang, Huihui; Yu, Hanchen; Wang, Zemin; Zeng, Xiaoyan

doi:10.1007/s11661-017-4087-9

Cited by 165 publications

(82 citation statements)

References 42 publications

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“…Heat treatment at 750°C was shown to decrease the corrosion rate of SLM Ti6Al4V to ∼2 × 10 −3 mm/y in comparison to wrought (4 × 10 −3 mm/y) by controlling microstructural transformations (i.e., altering grain size, type, and morphology of the constituent phases). Volume fractions of metastable α′ phase were hypothesized by Yang, et al, 118 to be reduced with the heat treatment of SLM Ti6Al4V, hence improving their corrosion resistance. This hypothesis is in accordance with the findings presented by Xu, et al 117 The tribocorrosion of SLM Ti6Al4V was investigated by Chiu, et al, 119 in SBF by altering SLM parameters.…”

Section: Titanium Alloysmentioning

confidence: 99%

“…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%

“…The effect of heat treatment on the corrosion of SLM Ti6Al4V in 3.5 wt% NaCl was investigated by Yang, et al 118 Electrochemical characteristics of SLM Ti6Al4V before and after heat treatments were compared to their wrought counterpart. Heat treatment at 750°C was shown to decrease the corrosion rate of SLM Ti6Al4V to ∼2 × 10 −3 mm/y in comparison to wrought (4 × 10 −3 mm/y) by controlling microstructural transformations (i.e., altering grain size, type, and morphology of the constituent phases).…”

Section: Titanium Alloysmentioning

confidence: 99%

See 2 more Smart Citations

Corrosion of Additively Manufactured Alloys: A Review

et al. 2018

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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.

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Section: Titanium Alloysmentioning

confidence: 99%

Section: Titanium Alloysmentioning

confidence: 99%

Section: Titanium Alloysmentioning

confidence: 99%

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Corrosion of Additively Manufactured Alloys: A Review

et al. 2018

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“…Yang et al [38] investigated the corrosion behavior of additive manufactured Ti6Al4V alloy in NaCl solution. Because of the combination of low density, excellent strength, high biocompatibility and high fracture toughness, Ti6Al4Valloy is used in the marine, aerospace, energy and medical implant fields.…”

Section: Direct Laser Metal Depositionmentioning

confidence: 99%

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Fatoba¹,

Akinlabi²,

Makhatha³

2017

Aluminium Alloys - Recent Trends in Processing, Characterization, Mechanical Behavior and Applications

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Modern industrial applications require materials with special surface properties such as high hardness, wear and corrosion resistance. The performance of material surface under wear and corrosion environments cannot be fulfilled by the conventional surface modifications and coatings. Therefore, different industrial sectors need an alternative technique for enhanced surface properties. The purpose of this is to change or enhance inherent properties of the materials to create new products or improve on existing ones. The most effective and economical engineering solution to prevent or minimize such surface region of a component is done by fiber lasers. Additive manufacturing (AM) is a breaking edge fabrication technique with the possibility of changing the perception of design and manufacturing as a whole. It is well suitable for the building and repairing applications in the aerospace industry which usually requires high level of accuracy and customization of parts which usually employ materials known to pose difficulties in fabrication such as titanium alloys. The current development focus of AM is to produce complex shaped functional metallic components, including metals, alloys and metal matrix composites (MMCs), to meet demanding requirements from aerospace, defense, and automotive industries.

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“…Fundamental understanding of the microstructure-electrochemical property is therefore critical to the AM technology. The corrosion resistance of AM 316L stainless steels [22][23][24][25][26] and Ti-6Al-4V alloys [27,28] have so far been widely studied. Contradictory results have been reported for the corrosion resistance of AM 316L stainless steels [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy

Ren

Mahajan

Liu

et al. 2019

Metals

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CoCrFeMnNi high entropy alloys (HEAs) were additively manufactured (AM) by laser powder bed fusion and their corrosion resistance in 3.5 wt% NaCl solution was studied by potentiodynamic polarization and electrochemical impedance spectroscopy tests. A systematic study of AM CoCrFeMnNi HEAs’ porosity under a wide range of laser processing parameters was conducted and a processing map was constructed to identify the optimal laser processing window for CoCrFeMnNi HEAs. The near fully dense AM CoCrFeMnNi HEAs exhibit a unique non-equilibrium microstructure consisting of tortuous grain boundaries, sub-grain cellular structures, columnar dendrites, associated with some processing defects such as micro-pores. Compared with conventional as-cast counterpart, the AM CoCrFeMnNi HEAs showed higher pitting resistance (ΔE) and greater polarization resistance (Rp). The superior corrosion resistance of AM CoCrFeMnNi HEAs may be attributed to the homogeneous elemental distribution and lower density of micro-pores. Our study widens the toolbox to manufacture HEAs with exceptional corrosion resistance by additive manufacturing.

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Corrosion Behavior of Additive Manufactured Ti-6Al-4V Alloy in NaCl Solution

Cited by 165 publications

References 42 publications

Corrosion of Additively Manufactured Alloys: A Review

Corrosion of Additively Manufactured Alloys: A Review

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy

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