Evidence map›Paper›PMID 40313863›Full record

ArticleJournal of magnesium and alloys2025

Spatial mapping of the localized corrosion behavior of a magnesium alloy AZ31B tungsten inert gas weld.

Leslie G Bland Miller, Corey M Efaw, Rebecca F Schaller, Kari Higginbotham, Steve D Johns, Paul H Davis, Elton Graugnard, John R Scully, Michael F Hurley

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of magnesium and alloys, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

2 citing papers in PubMed.

  1. Spatiotemporal Evolution of Interfacial pH and HMolecules (Basel, Switzerland) · 2026
    Article
  2. 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.

Leslie G Bland MillerDepartment of Materials Science and Engineering, University of Virginia, 395 McCormick Rd, Charlottesville, 22904-4745 VA, USA.
Corey M EfawMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.
Rebecca F SchallerDepartment of Materials Science and Engineering, University of Virginia, 395 McCormick Rd, Charlottesville, 22904-4745 VA, USA.
Kari HigginbothamMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.
Steve D JohnsMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.
Paul H DavisMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.
Elton GraugnardMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.
John R ScullyDepartment of Materials Science and Engineering, University of Virginia, 395 McCormick Rd, Charlottesville, 22904-4745 VA, USA.
Michael F HurleyMicron School of Materials Science and Engineering, College of Engineering, Boise State University, 1910 University Dr, Boise, 83725-2090 ID, USA.

Funding

Women's health: interplay of maternal diet and key demographics on neurological health in the rural frontier and remote WestP20GM103408 · NIGMS · UNIVERSITY OF IDAHO · PI Carolyn Hovde Bohach · 2012 to 2026
$59.8M
Optimizing Deep Brain Stimulation for Parkinson's Disease.P20GM148321 · NIGMS · BOISE STATE UNIVERSITY · PI Paul Henry Davis · 2023 to 2026
$10.2M
NIGMS NIH HHS P20 GM103408NIGMS NIH HHS P20 GM148321
6 · The paper itself

Abstract

Sections of a magnesium alloy, AZ31B, joined with tungsten inert gas (TIG) welding, were examined with scanning electrochemical microscopy (SECM) and scanning Kelvin probe force microscopy (SKPFM) to investigate corrosion mechanisms by correlating observed corrosion behavior with weld-affected microstructural variations. Insight into the changing nature of the galvanic couples between weld zones and at localized microgalvanic sites were investigated using SECM and SKPFM to map both electrochemically active regions and Volta potential differences across the weld-affected zones. The formation of an Al-Zn solidification network in the fusion zone (FZ) at and near the TIG weld epicenter differs from the outer heat-affected zone (HAZ), where intermetallic particles (IMPs) are the notable secondary phase from the magnesium matrix. These microstructures were mapped with SKPFM before and after brief exposure to a salt solution, revealing micro-galvanic couples as the main driving force to corrosion initiation and propagation within each zone. The IMPs and Al-Zn solidification network act as strong cathodes and govern the corrosion processes. The galvanic coupling and evolution of the intrinsic corrosion behavior between the weld zones is explained by monitoring the hydrogen evolution reaction (HER) with SECM over time. Anodically induced cathodic activation is confirmed for this welded material, as micro-galvanic couples between microstructural features are found to transition over time to broad electrochemically active areas within the weld-affected zones, resulting in polarity reversal as time of exposure proceeds. © 2025 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.

Indexed as

Anodically induced cathodic activationHydrogen evolution reaction (HER)Scanning electrochemical microscopy (SECM)Scanning kelvin probe force microscopy (SKPFM)

Identifiers

PMID40313863
PMCPMC12045324

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.