Direct comparison between Co-28Cr-6Mo alloy prepared by Selective Laser Melting and traditional investment casting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922812" target="_blank" >RIV/60461373:22310/21:43922812 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/1178/1/012046" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/1178/1/012046</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/1178/1/012046" target="_blank" >10.1088/1757-899X/1178/1/012046</a>

Result language

angličtina

Original language name

Direct comparison between Co-28Cr-6Mo alloy prepared by Selective Laser Melting and traditional investment casting

Original language description

Thanks to high mechanical properties stable at elevated temperatures, high abrasion resistance, suitable corrosion resistance and biocompatibility, ternary cobalt alloy Co-28Cr-6Mo is a widely used material in the field of aviation industry and medical implants production. Due to the difficult formability and machinability of this alloy in combination with complex shapes of produced parts, investment casting is the mostly employed production process. However, additive manufacturing provides new processing opportunities. E.g. Selective Laser Melting (SLM) technology fusing metallic powders by precisely focused and controlled laser beam enables the production of highly complex parts with high precision. In this contribution, we bring a direct comparison between the microstructures and mechanical properties of Co-28Cr-6Mo alloy prepared by SLM and investment casting. Due to significant differences in microstructure fineness and phase composition, SLM is revealed to increase not only material strength and hardness but concurrently plasticity. As a result of rapid solidification during SLM, very fine cellular microstructure with Mo microsegregation at cell walls is formed without the occurrence of any secondary phases. The distinctive microstructure of the additively manufactured alloy can be expected to be the cause of many other variances in the material behaviour.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IOP Conference Series: Materials Science and Engineering

ISSN

1757-8981

e-ISSN

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Volume of the periodical

1178

Issue of the periodical within the volume

september

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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