Evidence map›Paper›PMID 41315861›Full record

ArticleScientific reports2025

Influence of laser powder bed fusion build orientation on the corrosion resistance of CoCrWMo alloy considering dislocation density character and lattice microstrain.

Alicja Stanisławska, Tomasz Seramak, Katarzyna Zasińska, Łukasz Gaweł, Grzegorz Gajowiec, Maria Gazda, Dorota Moszczyńska, Jarosław Mizera, Marek Szkodo

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Alicja StanisławskaFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland. alicja.stanislawska@pg.edu.pl.
Tomasz SeramakFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
Katarzyna ZasińskaFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
Łukasz GawełFaculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
Grzegorz GajowiecFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
Maria GazdaFaculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.
Dorota MoszczyńskaFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw, 02-507, Poland.
Jarosław MizeraFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw, 02-507, Poland.
Marek SzkodoFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, Gdańsk, 80-233, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigates the impact of build orientation on the corrosion resistance of CoCrWMo alloys fabricated by Laser Powder Bed Fusion (L-PBF). Samples printed at angles from 0° to 90° were characterized using SEM, XRD (with modified Williamson-Hall and Warren-Averbach analysis), and potentiodynamic polarization in Ringer's solution. The results revealed that build orientation strongly affects microstrain, dislocation density, and dislocation character, which in turn govern passive layer composition and corrosion behavior. The sample printed at 90° exhibited the highest corrosion resistance, correlating with the lowest dislocation density, minimal microstrain, and the highest fraction of screw dislocations. XPS analysis showed this sample had the most Cr-rich passive layer, with Cr₂O₃ accounting for over 60% of oxide species. In contrast, low-angle samples exhibited more edge dislocations, higher microstrain, and less protective oxide films. These findings highlight the critical role of build-induced crystallographic anisotropy and defect structure in shaping corrosion response in L-PBF-processed biomedical alloys. The study also demonstrates the utility of advanced XRD-based methods for quantifying lattice distortions and dislocation populations. Importantly, the results support sustainable design strategies by enhancing corrosion resistance through process control, reducing reliance on coatings or alloying, and promoting resource-efficient manufacturing of biomedical and engineering components.

Indexed as

CoCrWMo alloyCorrosion resistanceDislocation densityLaser powder bed fusion (L-PBF)Lattice microstrain

Identifiers

PMID41315861
PMCPMC12753813

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