Miniature mechanical testing of LMD-fabricated compositionally & microstructurally graded gamma titanium aluminides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F22%3AN0000042" target="_blank" >RIV/26316919:_____/22:N0000042 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1557/s43578-022-00801-0" target="_blank" >https://link.springer.com/article/10.1557/s43578-022-00801-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1557/s43578-022-00801-0" target="_blank" >10.1557/s43578-022-00801-0</a>

Result language

angličtina

Original language name

Miniature mechanical testing of LMD-fabricated compositionally & microstructurally graded gamma titanium aluminides

Original language description

The design freedom in Laser Metal Deposition provided by the absence of a powder bed enables the fabrication of Functionally Graded Materials through Additive Manufacturing. For the first time, two suitable gamma-TiAl alloys (TiAl48Cr2Nb2, TiAl45Nb4C) are combined in direct and gradual transitions to generate different microstructure morphologies and, consequently, different mechanical properties within a component after an identical heat treatment. The influence of alloy composition, microstructure type, and material transition on the tensile properties and fracture toughness is analyzed through miniature testing. Miniature tensile tests show no orientation dependency in regard to the build direction and the composition/microstructure transition is not found to be a preferred fracture site. The miniature fracture toughness tests reveal that already small composition changes-insufficient to alter the microstructure configuration-can have a significant effect on the cracking behavior.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

JOURNAL OF MATERIALS RESEARCH

ISSN

0884-2914

e-ISSN

2044-5326

Volume of the periodical

37

Issue of the periodical within the volume

23

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

4312-4325

UT code for WoS article

000883219900001

EID of the result in the Scopus database

2-s2.0-85141974106