The microstructure analysis of powder-processed Ni-based superalloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00449175" target="_blank" >RIV/68081723:_____/15:00449175 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The microstructure analysis of powder-processed Ni-based superalloy
Original language description
The aim of present work is to study the high temperature degradation of the powder-processed superalloy Ni-15Cr-18Co-4Al-3.5Ti-5Mo. This superalloy has been applied as material for grips of a creep machine. The material was exposed at 1100 °C for about 10 days at 10 MPa stress. During the creep test occurred unacceptable creep deformation of grips as well as severe surface oxidation with scales peeling off. Three types of the microstructure were observed in the studied alloy. It is shown that the microstructure degradation resulting from the revealed ?´ phase fcc Ni3(Al,Ti) particles preferentially created at the grain boundaries of the samples after performing creep tests affects mechanical properties of the alloy. Based on our investigation the material is not recommended to be used for grips of creep machine at above 1000 °C.
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Deterioration, Dependability, Diagnostics
ISBN
978-80-7231-431-7
Number of pages of the result
10
Pages from-to
35-44
Number of pages of the book
302
Publisher name
University of Defence
Place of publication
Brno
UT code for WoS chapter
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