Effect of post process shear straining on structure and mechanical properties of 316 L stainless steel manufactured via powder bed fusion
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F22%3A10250221" target="_blank" >RIV/61989100:27230/22:10250221 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/22:10250221 RIV/00216305:26210/22:PU145606
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2214860422005176#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214860422005176#</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>
Alternative languages
Result language
angličtina
Original language name
Effect of post process shear straining on structure and mechanical properties 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 characteristic 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 swaging performed at hot, cold, and cryogenic conditions on the (sub)structure and mechanical properties of workpieces of AISI 316 L stainless steel, favourably used in constructions as well as medicine, manufactured by PBF. The workpieces built in the horizontal and vertical directions were analysed to assess their structures, residual strain and stress, density, and porosity; porosity was observed primarily in the horizontally built workpiece also featuring lower density and larger average grain size. Subsequently, the workpieces were subjected to rotary swaging, which contributed to (almost) complete elimination of porosity, evident substructure development, and significant grain refinement - the vertically built workpiece exhibited the avg. grain size of 2.3 µm, 1.8 µm, and 0.1 µm after hot, cold, and cryo swaging. The cryo-swaged sample also exhibited specific texture, room temperature ultimate tensile strength (UTS) of more than 2 000 MPa, and two times higher microhardness compared to the as-build workpiece. All the swaged pieces exhibited significantly improved mechanical properties, even at the testing temperature of 900 oC.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
<a href="/en/project/GA22-11949S" target="_blank" >GA22-11949S: Nanotwins, functional properties driven by intensive plastic deformation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
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
November
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
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