ArticleNature communications2022
Inhibiting weld cracking in high-strength aluminium alloys.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Welding Techniques for Magnesium Alloy Joints: A Comprehensive Review.Materials (Basel, Switzerland) · 2026Review
- Effect of CMT and MIG Welding on Microstructure and Mechanical Properties of Al-Zn-Mg-Cu-Er-Zr Alloy.Materials (Basel, Switzerland) · 2025Article
- Pre-weld friction stir processing mitigates hot cracking and strengthens AA6061 fusion welds.Scientific reports · 2025Article
- AI-Powered Very-High-Cycle Fatigue Control: Optimizing Microstructural Design for Selective Laser Melted Ti-6Al-4V.Materials (Basel, Switzerland) · 2025Article
- High-strength and crack-free welding of 2024 aluminium alloy via Zr-core-Al-shell wire.Nature communications · 2024Article
- Ultrastrong and ductile steel welds achieved by fine interlocking microstructures with film-like retained austenite.Nature communications · 2024Article
- Assessment of the Laser Beam Welding of Galvanized Car Body Steel with an Additional Organic Protective Layer.Materials (Basel, Switzerland) · 2023Article
Corrections and comments
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Authors and funding
16 authors.
Funding
Abstract
Cracking from a fine equiaxed zone (FQZ), often just tens of microns across, plagues the welding of 7000 series aluminum alloys. Using a multiscale correlative methodology, from the millimeter scale to the nanoscale, we shed light on the strengthening mechanisms and the resulting intergranular failure at the FQZ. We show that intergranular AlCuMg phases give rise to cracking by micro-void nucleation and subsequent link-up due to the plastic incompatibility between the hard phases and soft (low precipitate density) grain interiors in the FQZ. To mitigate this, we propose a hybrid welding strategy exploiting laser beam oscillation and a pulsed magnetic field. This achieves a wavy and interrupted FQZ along with a higher precipitate density, thereby considerably increasing tensile strength over conventionally hybrid welded butt joints, and even friction stir welds.
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Registered trials
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