Effect of post process shear straining on structure and mechanical nproperties of 316 L stainless steel manufactured via powder bed fusion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00561191" target="_blank" >RIV/68081723:_____/22:00561191 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/22:00561191

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2214860422005176?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214860422005176?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.addma.2022.103128" target="_blank" >10.1016/j.addma.2022.103128</a>

Result language

angličtina

Original language name

Effect of post process shear straining on structure and mechanical nproperties of 316 L stainless steel manufactured via powder bed fusion

Original language description

Powder Bed Fusion (PBF) has become popular despite the fact that PBF-prepared components feature charac teristic defects. Their performance, however, can be shifted to the next level by the application of post processing, advantageously via intensive plastic deformation. The study characterizes the effects of rotary nswaging performed at hot, cold, and cryogenic conditions on the (sub)structure and mechanical properties of nworkpieces of AISI 316 L stainless steel, favourably used in constructions as well as medicine, manufactured by nPBF. The workpieces built in the horizontal and vertical directions were analysed to assess their structures, nresidual strain and stress, density, and porosity, porosity was observed primarily in the horizontally built nworkpiece also featuring lower density and larger average grain size. Subsequently, the workpieces were sub jected to rotary swaging, which contributed to (almost) complete elimination of porosity, evident substructure ndevelopment, and significant grain refinement – the vertically built workpiece exhibited the avg. grain size of n2.3 µm, 1.8 µm, and 0.1 µm after hot, cold, and cryo swaging. The cryo-swaged sample also exhibited specific ntexture, room temperature ultimate tensile strength (UTS) of more than 2 000 MPa, and two times higher nmicrohardness compared to the as-build workpiece. All the swaged pieces exhibited significantly improved nmechanical properties, even at the testing temperature of 900 ◦C.

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/LM2018111" target="_blank" >LM2018111: European Spallation Source - participation of the Czech Republic</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Additive Manufacturing

ISSN

2214-8604

e-ISSN

2214-7810

Volume of the periodical

59

Issue of the periodical within the volume

NOV

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

103128

UT code for WoS article

000862765800002

EID of the result in the Scopus database

2-s2.0-85138788954