Mechanical properties and microstructure of large IN713LC nickel superalloy castings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00228573" target="_blank" >RIV/68407700:21220/14:00228573 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/matecconf/20141421004" target="_blank" >http://dx.doi.org/10.1051/matecconf/20141421004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/20141421004" target="_blank" >10.1051/matecconf/20141421004</a>

Result language
angličtina
Original language name
Mechanical properties and microstructure of large IN713LC nickel superalloy castings
Original language description
When approving large castings for use, mechanical values are measured by room temperature tensile test on test bodies made from the centres of the castings. These test bodies often exhibit lower values than required, in particular ultimate tensile strength and elongation. The presence of fragile niobium carbides in the structure of the alloy was identified as the main cause of this situation, which originated as a result of the slow speed cooling. Because of large grain size compared to gauge length diameter, crystal orientation of individual grains also plays an important role. Interdendritic carbides are oriented parallel with dendrites thus parallel with <100> directions in Ni superalloy crystal lattice. Grain oriented with <100> axis parallel to tensile direction has platelet carbides oriented perpendicular to the tensile axis. In that position carbides crack easily at low grain deformation. Longitudinal metallographic cuts of selected tested specimen gauge lengths were prepared an
Czech name
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Czech description
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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