Browse

Influence of Aging and Heat Treating on the Wettability of Stainless Steel Surface
스테인리스강 표면 젖음성에 대한 에이징 및 열처리 영향

Cited 0 time in Web of Science Cited 0 time in Scopus
Authors
김두곤
Advisor
주종남
Major
공과대학 기계항공공학부
Issue Date
2018-02
Publisher
서울대학교 대학원
Keywords
metalstainless steelsurfacewettabilityheat treating
Description
학위논문 (박사)-- 서울대학교 대학원 : 공과대학 기계항공공학부, 2018. 2. 주종남.
Abstract
Wettability control of engineering metals such as steel, copper, aluminum and their alloys is one of the future-promising technologies to enhance functionality of the materials used in various fields such as automobile, building, ocean plant, military, aerospace, etc. While significant amount of research output has been reported in laboratory scale, commercialization of the technology is still stagnant due to several difficulties. One representative example is aging effect on the wettability of engineering metals, which refers to time-dependent wettability transition from hydrophilic to hydrophobic state. This makes it difficult to achieve superhydrophobic and superhydrophilic metal surfaces.
In this dissertation, influence of aging and heat treating on the wettability of stainless steel surface is studied. Aging effect is investigated on a flat AISI stainless steel 304 surface to understand the intrinsic wettability. The effect of oxygen is explained as a main cause for aging effect. Heat treating effect is investigated and revealed as a powerful process to tune the intrinsic wettability of stainless steel surface. Finally, wettability control without chemical coating is demonstrated for superhydrophobic and superhydrophilic stainless surfaces considering the effects of aging and heat treating.
Language
English
URI
https://hdl.handle.net/10371/140562
Files in This Item:
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Theses (Ph.D. / Sc.D._기계항공공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse