Crossing the limits of 316L steel fabricated by powder bed fusion by thermomechanical post-processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F25%3A10257563" target="_blank" >RIV/61989100:27360/25:10257563 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10510961

Výsledek na webu

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001477518700001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001477518700001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matdes.2025.113973" target="_blank" >10.1016/j.matdes.2025.113973</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crossing the limits of 316L steel fabricated by powder bed fusion by thermomechanical post-processing

Popis výsledku v původním jazyce

Methods of laser powder bed fusion (LPBF) are popular although LPBF components feature issues negatively affecting their mechanical properties and corrosion behaviour. Post-processing of LPBF materials by deformation treatments can reduce/eliminate printing defects and enhance their performance. The study examines the effects of post-processing of LPBF AISI 316L steel workpieces, performed by the intensive plastic deformation method of rotary swaging, on the microstructures, mechanical properties, and corrosion behaviour. The results showed that the applied post-processing introduced grain refinement (cryogenic swaging to the ultra-fine scale) and grain size homogenization, as well as generally enhanced the resistance against corrosion and increased Vickers microhardness of the LPBF steel. The increased corrosion resistance of the cryo swaged sample was, most probably, primarily caused by the formation of {111}&lt;110&gt; shear fibre texture, while for the hot swaged sample, the increased corrosion resistance could primarily be attributed to the recrystallized microstructure. Hot compression testing revealed that the hot swaged sample featured higher activation energy for recrystallization than the cryo swaged one. On the other hand, the energy accumulated within the ultra-fine grained cryo swaged sample, due to aggravated plastic flow during processing, promoted the development of dynamic recrystallization duringthe hot compression testing.

Název v anglickém jazyce

Crossing the limits of 316L steel fabricated by powder bed fusion by thermomechanical post-processing

Popis výsledku anglicky

Methods of laser powder bed fusion (LPBF) are popular although LPBF components feature issues negatively affecting their mechanical properties and corrosion behaviour. Post-processing of LPBF materials by deformation treatments can reduce/eliminate printing defects and enhance their performance. The study examines the effects of post-processing of LPBF AISI 316L steel workpieces, performed by the intensive plastic deformation method of rotary swaging, on the microstructures, mechanical properties, and corrosion behaviour. The results showed that the applied post-processing introduced grain refinement (cryogenic swaging to the ultra-fine scale) and grain size homogenization, as well as generally enhanced the resistance against corrosion and increased Vickers microhardness of the LPBF steel. The increased corrosion resistance of the cryo swaged sample was, most probably, primarily caused by the formation of {111}&lt;110&gt; shear fibre texture, while for the hot swaged sample, the increased corrosion resistance could primarily be attributed to the recrystallized microstructure. Hot compression testing revealed that the hot swaged sample featured higher activation energy for recrystallization than the cryo swaged one. On the other hand, the energy accumulated within the ultra-fine grained cryo swaged sample, due to aggravated plastic flow during processing, promoted the development of dynamic recrystallization duringthe hot compression testing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Materials and Design

ISSN

0264-1275

e-ISSN

1873-4197

Svazek periodika

253

Číslo periodika v rámci svazku

253

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

001477518700001

EID výsledku v databázi Scopus

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