1：Experimental Design and Method Selection:

The study involves the deposition of AA5087 wall structures using wire-based laser metal deposition (LMD) with two different sets of process parameters to achieve different deposition rates. The microstructural evolution and hardness are investigated.

2：Sample Selection and Data Sources:

The aluminum alloy AlMg4.5MnZr (EN AW-5087) was used for deposition on a rolled AlMg3 (EN AW-5457) substrate sheet in annealed and recrystallized condition.

3：5MnZr (EN AW-5087) was used for deposition on a rolled AlMg3 (EN AW-5457) substrate sheet in annealed and recrystallized condition. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: An 8 kW continuous wave ytterbium fiber laser YLS-8000-S2-Y12 (IPG Photonics Corporation) with a wavelength of 1070 nm, integrated in an optical head YW52 Precitec, handled by a CNC-supported XYZ-machining center (IXION Corporation PLC).

4：Experimental Procedures and Operational Workflow:

The deposition was conducted with local argon shielding to protect the molten material. A waiting time of 60 s between the depositions of two layers was applied. Two sets of process parameters were used to deposit structures with the same dimension but consisting of a different number of layers.

5：Data Analysis Methods:

Microstructural observations were performed using an inverted optical microscope (OM) (Leica DMI 5000M) with polarized light. Microhardness testing was carried out along the cross sections by an automated Vickers hardness testing machine.