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Advanced Descaling Techniques for High-Temperature Oxidation in Stainless-Steel Alloys

Amjadian, Bahareh LU (2025) MMTM05 20251
Production and Materials Engineering
Abstract
The high-temperature oxidation of stainless-steel parts poses significant problems in power generation, chemical processing, and heat exchanger industries. Stainless steel grades such as austenitic AISI 316L, 310S, and ferritic 430 commonly used in industries undergo carving of oxide scales which diminishes spatial quality, increases corrosion, and reduces thermal conductivity. This thesis focuses on highly selective and efficient descaling methodologies that have the potential to remove destructive oxide layers whilst retaining the underlying metal's strength and durability against corrosion.
A comprehensive literature review has been undertaken which includes both traditional and recent studies relating to the entire spectrum of... (More)
The high-temperature oxidation of stainless-steel parts poses significant problems in power generation, chemical processing, and heat exchanger industries. Stainless steel grades such as austenitic AISI 316L, 310S, and ferritic 430 commonly used in industries undergo carving of oxide scales which diminishes spatial quality, increases corrosion, and reduces thermal conductivity. This thesis focuses on highly selective and efficient descaling methodologies that have the potential to remove destructive oxide layers whilst retaining the underlying metal's strength and durability against corrosion.
A comprehensive literature review has been undertaken which includes both traditional and recent studies relating to the entire spectrum of descaling techniques: mechanical, chemical, electrochemical, and thermal. Equally important was to find methods that are environmentally friendly and efficient from an industrial standpoint. As for the experimental stage, the focus was set on the chemical method of descaling using hydrochloric acid and choline chloride eutectic DES with acetic acid. The evaluation of descaling effectiveness was performed by measuring the weight of the samples before and after treatment, and by inspecting the surface visually both through photographs and direct observation.
Ensuring that all prerequisites were met, the results proved that surface appearance remained unchanged after optimized chemical descaling with DES, while oxide removal efficiency increased. (Less)
Please use this url to cite or link to this publication:
author
Amjadian, Bahareh LU
supervisor
organization
course
MMTM05 20251
year
type
H2 - Master's Degree (Two Years)
subject
report number
LUTMDN/(TMMV-5377)/1-60/2025
language
English
id
9198823
date added to LUP
2025-06-13 13:15:11
date last changed
2025-06-13 13:15:11
@misc{9198823,
  abstract     = {{The high-temperature oxidation of stainless-steel parts poses significant problems in power generation, chemical processing, and heat exchanger industries. Stainless steel grades such as austenitic AISI 316L, 310S, and ferritic 430 commonly used in industries undergo carving of oxide scales which diminishes spatial quality, increases corrosion, and reduces thermal conductivity. This thesis focuses on highly selective and efficient descaling methodologies that have the potential to remove destructive oxide layers whilst retaining the underlying metal's strength and durability against corrosion.
A comprehensive literature review has been undertaken which includes both traditional and recent studies relating to the entire spectrum of descaling techniques: mechanical, chemical, electrochemical, and thermal. Equally important was to find methods that are environmentally friendly and efficient from an industrial standpoint. As for the experimental stage, the focus was set on the chemical method of descaling using hydrochloric acid and choline chloride eutectic DES with acetic acid. The evaluation of descaling effectiveness was performed by measuring the weight of the samples before and after treatment, and by inspecting the surface visually both through photographs and direct observation.
Ensuring that all prerequisites were met, the results proved that surface appearance remained unchanged after optimized chemical descaling with DES, while oxide removal efficiency increased.}},
  author       = {{Amjadian, Bahareh}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Advanced Descaling Techniques for High-Temperature Oxidation in Stainless-Steel Alloys}},
  year         = {{2025}},
}