Understanding Metal Matrix Composites — Lesson 2

This lesson covers the manufacturing of metal matrix composites through additive manufacturing. It delves into the different types of matrixes, such as ferrous and titanium, and how they are formed using additive manufacturing. The lesson also discusses the properties of these matrixes when reinforced with various elements like TiC, TiB2, and hydroxyapatite. The instructor explains the importance of grain refinement, Marangoni convection, and dispersion in the manufacturing process. The lesson also touches on the application of these composites in various industries, including food processing and heavy industries.

Video Highlights

00:38 - Explanation of ferrous matrix and titanium matrix, and their common uses in industries
08:49 - Discussion on the formation of TiC reinforcement at grain boundaries and its effect on the properties of the composite
33:56 - Discussion on the formation of TiB phase from the in situ reaction within Ti and TiB2 particles
39:40 - Discussion on the formation of Ti-nano hydroxyapatite composites for biomedical applications
49:36 - Discussion on the formation of Ti 6 Al 4V plus B4C composite and its properties

Key Takeaways

- Metal matrix composites can be manufactured using additive manufacturing, which involves the formation of different types of matrixes like ferrous and titanium.
- These matrixes can be reinforced with various elements like TiC, TiB2, and hydroxyapatite to enhance their properties.
- The process of manufacturing involves grain refinement, Marangoni convection, and dispersion, which are crucial for the formation of the composites.
- These composites find applications in various industries, including food processing and heavy industries, due to their enhanced properties.
- The lesson also highlights the importance of choosing the right reinforcing materials and matrix to boost wear resistance.