Try Mobilus Beta
Search tips
 This content is not included in your SAE MOBILUS subscription, or you are not logged in.

The Effect of TiB 2 on Mechanical and Microstructural Properties of AZ91 Matrix Composites Manufactured by Cold Chamber Die Casting Process

Journal Article
2020-28-0425
ISSN: 2641-9645, e-ISSN: 2641-9645
DOI: https://doi.org/10.4271/2020-28-0425
Published September 25, 2020 by SAE International in United States
The Effect of TiB <sub>2</sub> on Mechanical and Microstructural Properties of AZ91 Matrix Composites Manufactured by Cold Chamber Die Casting Process
Sector:
Citation: R, S., P, P., and M, P., "The Effect of TiB2 on Mechanical and Microstructural Properties of AZ91 Matrix Composites Manufactured by Cold Chamber Die Casting Process," SAE Int. J. Adv. & Curr. Prac. in Mobility 3(2):831-835, 2021, https://doi.org/10.4271/2020-28-0425.
Language: English

Abstract:

In these work AZ91 magnesium matrix composites reinforced with two weight fractions (5 and 10 wt. %) of TiB2 particulates were fabricated by cold chamber die casting process technique. The microstructure, density, hardness, mechanical properties of the specimens was investigated. Microstructure studies showed that fairly uniform distribution of reinforcements was achieved up to the weight fraction studied. As compared to base alloy AZ91, the hardness and tensile strength considerably increased with increasing reinforcement content. The presence of TiB2 particles improved the hardness around 24.4 %, compressive strength around 67.2% and the yield strength around 20%. The enormous amount of increment in the compressive strength due to the dislocation density created by the difference in thermal properties of matrix and composites and also due to the micro-pores presence in the composite.

Recommended Content

Technical Paper Development and Property Evaluation of Aluminum-Alloy Reinforced with Nano-ZrO 2 Metal Matrix Composites (NMMCs) for Automotive Applications
Technical Paper Hot Forming of 7075 Aluminium Alloy Tubes to Produce Complex and Strong Components
Aerospace Material Specification Pressure Testing, Gaseous Media 10 Psi