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Additive Manufacturing of Automotive Metal Multi-Material Shunt Resistor: Cost and Carbon Footprint Analysis
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Resistance to Fracture of Additively Manufactured Aluminium Alloy AlSi10Mg under Plane Stress Conditions
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Effect of CuCr1Zr Cross-Contamination Level on Work Hardening Characteristics of AlSi10Mg Additive Manufactured Material
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Effect of CuCr1Zr Cross-Contamination Level on Work Hardening Characteristics of AlSi10Mg Additive Manufactured Material

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Abstract:

Cross-contamination occurring after the blending of metal powders in multi-material laser powder bed fusion (PBF-LB/M) is a frequent manufacturing issue and poses a major obstacle to the further development of this emerging additive manufacturing process. To evaluate the influence of such contamination on a technologically important material system for multi-material PBF-LB/M, this study investigates the impact of CuCr1Zr foreign particle contamination within AlSi10Mg powder on the resulting metallurgical characteristics and mechanical performance of the fabricated parts. Several contamination levels of CuCr1Zr were considered, namely 0.5 wt.%, 3.0 wt.% and 5.0 wt.%, with the results benchmarked against samples produced from uncontaminated powder. Tensile testing demonstrated that the cross-contamination contribute to material embrittlement. This investigation focuses on the tensile work-hardening behaviour of the investigated materials showcasing that the specimens exhibit only the first two work-hardening stages, while for the higher contamination level studied, the material becomes brittle and fractures even in the first work hardening stage.

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Info:

Periodical:

Key Engineering Materials (Volume 1047)

Pages:

391-396

Online since:

April 2026

Authors:

Ioanna Giavrouta*, Max Horn, Leonard Alberty, Ismail Ünsal, Georg Schlick, Nikolaos D. Alexopoulos

Keywords:

Additive Manufacturing, Metallic Multi-Material 3D Printing, Work-Hardening

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Permissions:

Creative Commons CC BY 4.0

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* - Corresponding Author

References

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