Fatigue and fracture surface characteristics of additively manufactured titanium alloy under various loading configurations and build orientations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F24%3A10256512" target="_blank" >RIV/61989100:27230/24:10256512 - isvavai.cz</a>
Result on the web
<a href="https://www.emerald.com/insight/content/doi/10.1108/rpj-09-2024-0380/full/html" target="_blank" >https://www.emerald.com/insight/content/doi/10.1108/rpj-09-2024-0380/full/html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1108/RPJ-09-2024-0380" target="_blank" >10.1108/RPJ-09-2024-0380</a>
Alternative languages
Result language
angličtina
Original language name
Fatigue and fracture surface characteristics of additively manufactured titanium alloy under various loading configurations and build orientations
Original language description
Purpose: Computer tomography (CT) is widely used in engineering applications, allowing for precise structural analysis of materials and components, enabling the measurement of internal properties and features, which is crucial for assessing their quality and durability. Therefore, the purpose of this study is to analyze the fatigue fracture surface features of titanium alloy (Ti-6Al-4V) under different loading configurations and structure orientations using computational micro-tomography. Design/methodology/approach: In this work, the specimens were fabricated by selective laser melting (SLM) and subjected to fatigue tests to analyze the effects of different printing parameters on mechanical properties and microstructural features. The comprehensive methodology included metallographic testing, fatigue life testing, fractographic analysis and CT analysis, followed by microhardness measurements, providing a detailed assessment of internal defects and their impact on fatigue performance. Findings: The fatigue test results showed better fatigue life for samples printed with Y orientation followed by X and Z orientation. The measurement values were fitted to obtain mean variable values of A as 6.522, 10.831 and 6.747 and values of m as −0.587, −2.318 and −0.771 for samples printed with X, Y and Z orientation for the Basquin’s equation to determine fatigue life. CT analysis revealed that the mean equivalent defect diameters were 0.0506, 0.0496 and 0.0513 mm and mean defect volume of 0.000714, 0.000467 and 0.000534 mm3 for X, Y and Z orientation samples, respectively. Originality/value: The novel aspect of this study is to investigate the effect of extreme SLM process parameters on the durability of the material subjected to complex multiaxial loading conditions, including nonproportional fatigue loading. © 2024, Emerald Publishing Limited.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Rapid Prototyping Journal
ISSN
1355-2546
e-ISSN
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Volume of the periodical
2024
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
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UT code for WoS article
001380412500001
EID of the result in the Scopus database
2-s2.0-85212765216