Structural integrity and mechanical properties of the functionally graded material based on 316L/IN718 processed by DED technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F21%3AN0000007" target="_blank" >RIV/26316919:_____/21:N0000007 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.msea.2021.141038" target="_blank" >https://doi.org/10.1016/j.msea.2021.141038</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2021.141038" target="_blank" >10.1016/j.msea.2021.141038</a>

Result language

angličtina

Original language name

Structural integrity and mechanical properties of the functionally graded material based on 316L/IN718 processed by DED technology

Original language description

Additive manufacturing is a one of the most promising technology nowadays that offers the advantages not only in building products of complex shapes but also of complex materials. A complex structure is characteristic for Functionally Graded Composites, which basics, principles and applicability have been widely investigated over the last years. The present study is focused on the detailed investigation of mechanical and structural properties of FGC consisting of stainless steel 316L and Inconel 718 processed by Blown Powder Directed Energy Deposition system. Mechanical properties within single layers and over layers transitions were investigated with the use of tensile tests and fracture toughness tests. Metallographic and fractographic investigations were carried out. Metallographic investigation revealed the differences in the interfaces between single material layers, nucleation processes and subsequent growth of the grains of the used materials. It has been shown that the formation of transition region between deposited single material layers is dependent on the order of material deposition since different deposition parameters are used for certain material. Evaluation of the tensile properties showed that the mechanical properties of a single material layers are in very good agreement regardless of the deposition height. However, the types of interfaces considering to the results of fractographic observations affect the tensile performance of the Functionally Graded Composite. The fracture toughness test results demonstrate changes in the mechanism of crack propagation at the interface between materials with respect to the type of transition. Furthermore, the material layers interfaces turned out to be the weakest points of the Functionally Graded Composite.

Czech name

—

Czech description

—

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

<a href="/en/project/EF17_048%2F0007350" target="_blank" >EF17_048/0007350: Pre-Application Research of Functionally Graduated Materials by Additive Technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

ISSN

0921-5093

e-ISSN

1873-4936

Volume of the periodical

811

Issue of the periodical within the volume

APR 15 2021

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

nestránkováno

UT code for WoS article

000636779300004

EID of the result in the Scopus database

2-s2.0-85102806029