Affecting Microstructure and Properties of Additively Manufactured AISI 316L Steel by Rotary Swaging

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00561809" target="_blank" >RIV/68081723:_____/22:00561809 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/22:10250333

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/15/18/6291" target="_blank" >https://www.mdpi.com/1996-1944/15/18/6291</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma15186291" target="_blank" >10.3390/ma15186291</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Affecting Microstructure and Properties of Additively Manufactured AISI 316L Steel by Rotary Swaging

Popis výsledku v původním jazyce

The presented work focused on the development of the microstructural and mechanical properties of a AISI 316L stainless steel workpiece prepared through additive manufacturing and subsequently processed by hot rotary swaging. In order to characterize the effects of swaging on the structural development, samples were taken for electron microscopy scanning and microhardness measurements were taken after each swaging reduction. The as-built and final swaged pieces were also subjected to tensile testing at room temperature and at 900 degrees C. The structural analyses showed that the hot swaging introduced a substructural formation, low angle grain boundaries prevailed over high angle ones after each pass. The swaging also imparted an almost complete elimination of the porosity and significant grain size, the average grain area decreased from the original value of 365.5 mu m(2) to 4.4 mu m(2) after the final swaging pass. The changes in the texture between the passes were negligible, however, the grain refinement went hand in hand with the microhardness increase (up to almost 300 HV1). The results of the tensile testing confirmed that the mechanical properties of the swaged pieces which improved dramatically and remained favorable up to high temperatures.

Název v anglickém jazyce

Affecting Microstructure and Properties of Additively Manufactured AISI 316L Steel by Rotary Swaging

Popis výsledku anglicky

The presented work focused on the development of the microstructural and mechanical properties of a AISI 316L stainless steel workpiece prepared through additive manufacturing and subsequently processed by hot rotary swaging. In order to characterize the effects of swaging on the structural development, samples were taken for electron microscopy scanning and microhardness measurements were taken after each swaging reduction. The as-built and final swaged pieces were also subjected to tensile testing at room temperature and at 900 degrees C. The structural analyses showed that the hot swaging introduced a substructural formation, low angle grain boundaries prevailed over high angle ones after each pass. The swaging also imparted an almost complete elimination of the porosity and significant grain size, the average grain area decreased from the original value of 365.5 mu m(2) to 4.4 mu m(2) after the final swaging pass. The changes in the texture between the passes were negligible, however, the grain refinement went hand in hand with the microhardness increase (up to almost 300 HV1). The results of the tensile testing confirmed that the mechanical properties of the swaged pieces which improved dramatically and remained favorable up to high temperatures.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA22-11949S" target="_blank" >GA22-11949S: Nanodvojčata, funkční vlastnosti řízené intenzivní plastickou deformací</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

15

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

6291

Kód UT WoS článku

000856859800001

EID výsledku v databázi Scopus

2-s2.0-85138709895