Selective Laser Melting to Manufacture “In Situ” Metal Matrix Composites: A Review

By Sasan Dadbakhsh, R. Mertens, Liang Hao, J. van Humbeeck, Jean-Pierre Kruth. Advanced Engineering Materials, 2019

190 citations recorded by the source corpus.

After a brief introduction on selective laser melting (SLM) and “ex situ” manufacture of metal matrix composites (MMCs), this paper reviews the capacities and benefits of SLM to activate and control various “in situ” reactions during fabrication of 3D parts. It introduces several systems (such as Al/Fe2O3, AlSi10Mg/SiC, Al/ZnO, Ti/C, Ti/SiC, Ti/Si3N4, Ti/Mo2C, Fe/SiC, etc.) used to manufacture Al‐based, Ti‐based, and steel‐based “in situ” MMCs. Then, it illustrates the novel microstructural characteristics of these SLM‐made “in situ” MMCs for different cases, as they may appear from nano‐particles to nano‐whiskers and dendritic reinforcements homogeneously distributed in a metal matrix. It also focuses on SLM associated “in situ” mechanisms, explaining how an “in situ” reaction propagates based on “decomposition, diffusion, and reformation” and how the growth mechanisms turn into different morphologies such as rounded particles, whiskers, or polygonal block shapes. The influence of various SLM parameters (such as energy density, laser power/speed, powder layer thickness, and the size of initial powder particles) and the SLM “in situ” challenges are also discussed.

Subfields: Automotive Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/48b1f22d34307d55d55553a9d43ea72af28a1e51

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. P. Qin
2. Lina Zhang
3. Liang-Yu Chen
4. Dierk Raabe
5. P. Kürnsteiner
6. A. Kini
7. Lai‐Chang Zhang
8. E. Jägle

In Mechanical Engineering

1. P. Qin
2. Lina Zhang
3. Liang-Yu Chen
4. E. Jägle
5. Dierk Raabe
6. P. Kürnsteiner
7. A. Kini
8. Lai‐Chang Zhang

Citations in the corpus

• Steels in additive manufacturing: A review of their microstructure and properties (2020, methodology): “We refer the reader to other reviews of this class of materials [3,6,7].”
• An overview of additively manufactured metal matrix composites: preparation, performance, and challenge (2024, background): “However, the AM process can cause instability in the melt pool of materials during the in-situ reaction, which generates additional heat and causes excessive evaporation and powder splash [36, 146].”