Low cycle fatigue of cast gamma-TiAl based alloys at high temperature

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00354105" target="_blank" >RIV/68081723:_____/11:00354105 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/11:PU92952

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Low cycle fatigue of cast gamma-TiAl based alloys at high temperature

Original language description

The low-cycle fatigue properties of cast nearly lamellar TiAl alloys with diverse Nb content at room temperature and 750°C were compared. Monotonic tensile curves,cyclic stress-strain curves and combined fatigue life curves were obtained at both temperatures. After cyclic straining the surface relief and the fracture surfaces were observed using scanning electron microscopy. The increase in Nb content significantly improves tensile properties and CSSCs at both temperatures.The combined fatigue life curves especially at 750°C are shifted to higher fatigue lives. The effect o Nb content on the tensile and cyclic strength is discussed in relation to the thickness of the lamellae. Persistent slip markings formed along interlamellar interfaces were predominant locations for fatigue cracks. At both temperatures and materials showed similar crack initiation and propagation behavior. The cracks initiated at surface or in sub-surface region creating smooth flat areas corresponding to the persis

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Key Engineering Materials

ISSN

1013-9826

e-ISSN

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Volume of the periodical

452-453

Issue of the periodical within the volume

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Country of publishing house

CH - SWITZERLAND

Number of pages

4

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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