| Issue |
MATEC Web Conf.
Volume 406, 2024
2024 RAPDASA-RobMech-PRASA-AMI Conference: Unlocking Advanced Manufacturing - The 25th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, hosted by Stellenbosch University and Nelson Mandela University
|
|
|---|---|---|
| Article Number | 06010 | |
| Number of page(s) | 7 | |
| Section | Computational & Data-driven Modelling | |
| DOI | https://doi.org/10.1051/matecconf/202440606010 | |
| Published online | 09 December 2024 | |
First-principles study of binary FCC Fe-Mn compositions
Advanced Materials Division, MINTEK, South Africa, Majep@mintek.co.za, DonaldM@mintek.co.za, lebidikem@mintek.co.za, josephm@mintek.co.za
In a build-up to design and development of light-weight austenitic Fe-Mn alloys for storage and transportation of liquefied natural gas (LNG), present study employed computational materials modelling technique to identify compositions that yield high toughness at cryogenic temperatures. This study revealed that the addition of manganese (Mn) resulted in an increase in lattice constant and convex-shaped heats of formation trend with minimum at 22 atomic percent (at.%) Mn alloy composition. In addition, increase in Mn composition yielded a significant decrease in tetragonal shear modulus (C′) and Young’s modulus (E), while the decrease in bulk modulus (B) is small. Ductility increased with increase in Mn composition as shown by B/G and Poisson’s ratio (v) values that are much higher than ductility threshold of 1.75 and 0.26, respectively, signalling high toughness.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.