Evidence map›Paper›PMID 42195673›Full record

ArticleMaterials (Basel, Switzerland)2026

Effect of Post-Sintering Shot Peening Treatment on the Corrosion Behavior of Alumix 321 Powder Metallurgy Alloy in 3.5 wt.% NaCl Solution.

Abdulwahab Ibrahim, Paul Bishop, Georges Kipouros

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

3 authors.

Abdulwahab IbrahimDepartment of Mechanical Engineering, College of Engineering and Technology, University of Doha for Science and Technology, Al Tarafa, Jelaiah Street, Doha P.O. Box 24449, Qatar.ORCID 0000-0002-3684-1341
Paul BishopFaculty of Engineering, Department of Mechanical Engineering, Dalhousie University, 5248 Morris Street, Halifax, NS B3H 4R2, Canada.
Georges KipourosDepartment of Chemical and Biological Engineering, College of Engineering, University of Saskatchewan, 57 Campus Dr, Saskatoon, SK S7N 5A9, Canada.

Funding

Natural Sciences and Engineering Research Council (NSERC) of Canada 250034-2013
6 · The paper itself

Abstract

The growing emphasis on environmental sustainability and the need for advanced manufacturing methods have accelerated progress in material processing. Aluminum powder metallurgy (APM) is particularly promising due to aluminum's low density, high strength-to-weight ratio, and the inherent benefits of the powder metallurgy (PM) process. However, the corrosion resistance of sintered aluminum components remains a significant concern. In this study, shot peening (SP) was employed as a surface modification technique to improve the corrosion behavior of Alumix 321 PM alloy. Samples of the as-sintered and shot-peened Alumix 321 PM alloy, together with the wrought alloy counterpart AA6061, were characterized using non-contact optical profilometry, optical microscopy (OM), and scanning electron microscopy (SEM). Corrosion performance was evaluated in 3.5 wt.% NaCl solution using Tafel extrapolation (TE), cyclic polarization (CP), stair step polarization (SSP), and electrochemical impedance spectroscopy (EIS). The results revealed that shot peening increased surface roughness and significantly reduced the corrosion rate from 0.079 mmpy to 0.004 mmpy for the unpeened and peened samples, respectively. While pitting was the dominant corrosion mechanism in the wrought alloy, the PM alloy exhibited a combination of pitting, crevice, and intergranular corrosion. These findings highlight the potential of SP in enhancing the durability of aluminum-based PM components, offering valuable insights for industrial applications.

Indexed as

Alumix 321corrosioncyclic polarizationpowdershot peeningstair step polarization

Identifiers

PMID42195673
PMCPMC13208395

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