ArticleMaterials (Basel, Switzerland)2018
Study of Size Effect on Microstructure and Mechanical Properties of AlSi10Mg Samples Made by Selective Laser Melting.
Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Article
- Critical Review of Comparative Study of Selective Laser Melting and Investment Casting for Thin-Walled Parts.Materials (Basel, Switzerland) · 2023Review
- Deviations of the SLM Produced Lattice Structures and Their Influence on Mechanical Properties.Materials (Basel, Switzerland) · 2022Article
- Effect of Multi-Variant Thermal Treatment on Microstructure Evolution and Mechanical Properties of AlSi10Mg Processed by Direct Metal Laser Sintering and Casting.Materials (Basel, Switzerland) · 2022Article
- Microstructural Evolution, Hardness, and Strengthening Mechanisms in SLM AlSi10Mg Alloy Subjected to Equal-Channel Angular Pressing (ECAP).Materials (Basel, Switzerland) · 2021Article
- Image-Based Geometrical Characterization of Nodes in Additively Manufactured Lattice Structures.3D printing and additive manufacturing · 2021Article
- Mechanical Properties of SLM-Printed Aluminium Alloys: A Review.Materials (Basel, Switzerland) · 2020Review
- Low Cycle Fatigue Life Evaluation of Notched Specimens Considering Strain Gradient.Materials (Basel, Switzerland) · 2020Article
- Damage Tolerance Evaluation of E-PBF-Manufactured Inconel 718 Strut Geometries by Advanced Characterization Techniques.Materials (Basel, Switzerland) · 2020Article
- Article
- The Effects of Feature Sizes in Selectively Laser Melted Ti-6Al-4V Parts on the Validity of Optimised Process Parameters.Materials (Basel, Switzerland) · 2019Article
- Size-Dependent Free Vibration and Buckling of Three-Dimensional Graphene Foam Microshells Based on Modified Couple Stress Theory.Materials (Basel, Switzerland) · 2019Article
- Effect of Hatch Spacing on Melt Pool and As-built Quality During Selective Laser Melting of Stainless Steel: Modeling and Experimental Approaches.Materials (Basel, Switzerland) · 2018Article
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Authors and funding
6 authors.
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Abstract
The macroscopic mechanical performance of additive manufactured structures is essential for the design and application of multiscale microlattice structure. Performance is affected by microstructure and geometrical imperfection, which are strongly influenced by the size of the struts in selective laser melting (SLM) lattice structures. In this paper, the effect of size on microstructure, geometrical imperfection, and mechanical properties was systemically studied by conducting experimental tests. A series of AlSi10Mg rod-shaped samples with various diameters were fabricated using SLM. The uniaxial tensile test results show that with the decrease in build diameter, strength and Young's modulus of strut decreased by 30% more than the stable state. The main reasons for this degradation were investigated through microscopic observation and micro X-ray computed tomography (μ-CT). In contrast with large-sized strut, the inherent porosity (1.87%) and section geometrical deviation (3%) of ponysize strut is greater because of the effect of thermal transform and hydrogen evolution, and the grain size is 0.5 μm. The discrepancy in microstructure, geometrical imperfection, and mechanical properties induced by size effect should be considered for the design and evaluation of SLM-fabricated complex structures.
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