Microstructure and wear property of laser-clad Co3Mo2Si/Coss wear resistant coatings

Liu, Y.; Wang, H.M.

doi:10.1016/j.surfcoat.2010.06.064

Cited by 21 publications

(2 citation statements)

References 25 publications

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“…Selected Area Electron Diffraction (SAED) obtained for three differently oriented precipitates (Figure 6a− [3,4,6,19,25,26]. These materials are known for their high hardness and dominant covalent nature of bonds, which makes them attractive in applications requiring high wear resistance [27,28]. The results of STEM imaging also showed that these hard precipitates in the Co-SLS can be deformed.…”

Section: Crystalline Structure and Microstructure Of Co-sls And Co-pimmentioning

confidence: 98%

Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding

et al. 2020

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Cobalt alloys are widely used in biomedicine, implantology, and dentistry due to their high corrosion resistance and good mechanical properties. The high carbon improves the wear properties, but causes fragility and dangerous cracking of elements during use. The aim of the present work was to analyze and compare the structure and wear resistance of Co-based alloy samples with low carbon content, produced by Selective Laser Sintering (SLS) and Powder Injection Molding (PIM). Structure characterization, mainly with the use of transmission electron microscopy, was applied to investigate the differences in tribological properties. The better resistance to abrasive wear for SLS was explained by the presence of a hard, intermetallic phase, present as precipitates limited in size and evenly distributed in the cobalt matrix. The second factor was the structure of the cobalt matrix, with dominant content of the hexagonal phase. By combining the characteristic features of the matrix and the reinforcing phase, the analyzed material gains an additional advantage, namely a higher resistance to abrasive wear.

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Section: Crystalline Structure and Microstructure Of Co-sls And Co-pimmentioning

confidence: 98%

Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding

et al. 2020

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“…Besides Tribaloy, also other Laves phase-based materials were suggested as wear-or corrosion-resistant coatings. Very similar to the Tribaloy composite concept of combining a very hard, highmelting Si-stabilized C14 Laves phase with a more ductile metal or intermetallic phase, a class of wearresistant ternary alloys was developed which are composed of an A 2 B 3 Si-type (i.e., A(B [543,544] or tetragonal W 5 Si 3 [535,545], and Mo(Co 0.75 Si 0.25 ) 2 Laves phase with fcc Co solid solution [546][547][548][549]. The combinations of hard but brittle Laves phase with a toughening second phase such as the metal solid solutions allow the adjustment of properties via variation of the phase contents.…”

Section: Other Laves Phase-based Materialsmentioning

confidence: 99%

Laves phases: a review of their functional and structural applications and an improved fundamental understanding of stability and properties

2020

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Laves phases with their comparably simple crystal structure are very common intermetallic phases and can be formed from element combinations all over the periodic table resulting in a huge number of known examples. Even though this type of phases is known for almost 100 years, and although a lot of information on stability, structure, and properties has accumulated especially during the last about 20 years, systematic evaluation and rationalization of this information in particular as a function of the involved elements is often lacking. It is one of the two main goals of this review to summarize the knowledge for some selected respective topics with a certain focus on non-stoichiometric, i.e., non-ideal Laves phases. The second, central goal of the review is to give a systematic overview about the role of Laves phases in all kinds of materials for functional and structural applications. There is a surprisingly broad range of successful utilization of Laves phases in functional applications comprising Laves phases as hydrogen storage material (Hydraloy), as magneto-mechanical sensors and actuators (Terfenol), or for wear- and corrosion-resistant coatings in corrosive atmospheres and at high temperatures (Tribaloy), to name but a few. Regarding structural applications, there is a renewed interest in using Laves phases for creep-strengthening of high-temperature steels and new respective alloy design concepts were developed and successfully tested. Apart from steels, Laves phases also occur in various other kinds of structural materials sometimes effectively improving properties, but often also acting in a detrimental way.

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Coating Characterizations

Fauchais¹,

Heberlein²,

Boulos³

2013

Thermal Spray Fundamentals

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Microstructure and wear property of laser-clad Co3Mo2Si/Coss wear resistant coatings

Cited by 21 publications

References 25 publications

Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding

Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding

Laves phases: a review of their functional and structural applications and an improved fundamental understanding of stability and properties

Coating Characterizations

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