Elevated Temperature Baseplate Effect on Microstructure, Mechanical Properties, and Thermal Stress Evaluation by Numerical Simulation for Austenite Stainless Steel 316L Fabricated by Directed Energy Deposition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F22%3AN0000017" target="_blank" >RIV/26316919:_____/22:N0000017 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/15/12/4165/htm" target="_blank" >https://www.mdpi.com/1996-1944/15/12/4165/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma15124165" target="_blank" >10.3390/ma15124165</a>

Result language

angličtina

Original language name

Elevated Temperature Baseplate Effect on Microstructure, Mechanical Properties, and Thermal Stress Evaluation by Numerical Simulation for Austenite Stainless Steel 316L Fabricated by Directed Energy Deposition

Original language description

In the present study, the effect of material deposition at the elevated temperature baseplate on the microstructure and mechanical properties was investigated and correlated to the unique thermal history by using numerical simulation. Numerical results agreed well with the experimental results of microstructure and mechanical properties. Numerical results revealed a significant decrease in temperature gradient and a 40% decrease in thermal stress due to material deposition on the elevated temperature baseplate. The reduced thermal stress and temperature gradient resulted in coarser grain features, which in turn led to a decrease in hardness and tensile strength, especially for the bottom region near the baseplate. Meanwhile, no significant effect could be found for ductility. In addition, an elevated temperature baseplate promoted less heterogeneity in hardness and tensile properties along the building direction. The current work demonstrates a collective and direct understanding of the baseplate preheating effect on thermal stress, microstructure and mechanical properties and their correlations, which is believed beneficial for the better utilization of baseplate preheating positive effects.

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

<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

2022

Confidentiality

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

Name of the periodical

MATERIALS

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

15

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

nestránkováno

UT code for WoS article

000817328600001

EID of the result in the Scopus database

2-s2.0-85132263338