E-Thesis 91 views 45 downloads
Using Rapid Alloy Prototyping to Investigate the Effects of Residual Elements in Increased Scrap Recycling / CAROLINE NORRISH
Swansea University Author: CAROLINE NORRISH
DOI (Published version): 10.23889/SUThesis.67597
Abstract
This work employs a novel, small-scale rapid alloy prototyping (RAP) method, developed throughout the project, to investigate the feasibility of using this research method to investigate the effects of residual elements. The RAP samples vary from 20g to 140g and are quick to produce, allowing an arr...
| Published: |
Swansea University, Wales, UK
2024
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| Institution: | Swansea University |
| Degree level: | Doctoral |
| Degree name: | EngD |
| Supervisor: | Lavery, N. P. |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa67597 |
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| Abstract: |
This work employs a novel, small-scale rapid alloy prototyping (RAP) method, developed throughout the project, to investigate the feasibility of using this research method to investigate the effects of residual elements. The RAP samples vary from 20g to 140g and are quick to produce, allowing an array of unique compositions with synthetic scrap additions, to be tested quickly.Residual elements are commonly introduced via steel scrap and need to be carefully monitored and controlled throughout the steelmaking process. The impact on product quality resulting from residual elements necessitates strict limits on the percentage of scrap that can be used in the manufacture of new steel products, limiting the environmental and financial benefits that come from increasing scrap use. This highlights the need for research that challenges the stringency of industrially enforced residual limits across different steel grades. There is minimal existing research in this area, predominantly on lower alloy grades, and often published several decades ago.he looming importance of the climate crisis exacerbates the urgency for research focused on reducing the environmental impact of vital industries such as steel.This work focusses on two different steels, a DP800 with high levels of alloying content where the impact of residual elements is expected to be less pronounced, and a low carbon steel with far fewer alloying additions and far more industrial concern for the impact of the residual elements.Results published in this thesis show that the RAP method can be a valuable tool in understanding the impacts of increased scrap use on steel products, demonstrating that environmentally responsible manufacturing does not necessarily require a significant compromise in product quality. Several of the sub-150g lab-scale RAP samples can be produced each week, allowing for far faster alloy research compared to the 30-60kg pilot-scale samples currently used in product development, allowing for rapid investigations into compositional variations in both new and established steel grades. |
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| Item Description: |
A selection of content is redacted or is partially redacted from this thesis to protect sensitive and personal information. |
| Keywords: |
Rapid Alloy Prototyping, Residual Elements, Iron and Steel |
| College: |
Faculty of Science and Engineering |
| Funders: |
M2A |