The Construction of Superhydrophobic Structure on Stainless Steel by an Optimized Chemical Etching Technics

2021 ◽  
pp. 1-18
Author(s):  
Huixiang Hu ◽  
Xiaozhe Hong ◽  
Yan Gao
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Steel Plate ◽  
Stainless Steel Plate ◽  
Engineering Material ◽  
Nano Structure ◽  
Wetting Properties ◽  
Cleaning Performance ◽  
Excellent Corrosion Resistance ◽  
Short Time

Abstract Austenitic stainless steel is a widely used engineering material in industry and daily life due to its excellent corrosion resistance. The construction of superhydrophobic structure on stainless steel can endow it with special wetting properties and open up new paths for its application. In this study, stainless steel plate was first etched in an hydrofluoric acid solution with a low concentration of 40 wt.%, and a micro-nano structure was obtained in a short time of 2 hours. The surface was then modified in myristic acid to achieve superhydrophobicity. The superhydrophobic structure on the steel showed a high contact angle of 166°, excellent self-cleaning performance and greatly improved corrosion resistance compared with the original counterpart. Meanwhile, its wear durability was evaluated by sandpaper abrasion test and the superhydrophobic structure maintained its property after moving 125 cm on the 1000-grit sandpaper under a pressure of 3.2 kPa.

scholarly journals Chemical Evaluation of Corrosion Resistance for Stainless-Steel Plate Wet-Coated by Alumina-Fluoro Composite Coatings

2012 ◽  
Vol 22 (12) ◽  
pp. 643-649
Author(s):  
Ha-Young Jung ◽  
Dae Sung Kim ◽  
Seung-Ho Lee ◽  
Hyung Mi Lim ◽  
Kun Kim ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Steel Plate ◽  
Composite Coatings ◽  
Stainless Steel Plate ◽  
Chemical Evaluation

CRUCIBLE 174 SXR

Alloy Digest ◽  
2009 ◽  
Vol 58 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Stainless Steels ◽  
Precipitation Hardening ◽  
High Strength ◽  
Heat Treating ◽  
Martensitic Stainless Steels ◽  
Excellent Corrosion Resistance

Abstract Crucible 174 SXR is a premium-quality precipitation-hardening stainless steel designed for use as rifle barrels. It is a modification of Crucible’s 17Cr-4Ni that offers substantially improved machinability without sacrificing toughness. Its excellent corrosion resistance approaches that of a 300 series austenitic stainless steel, while its high strength is characteristic of 400 series martensitic stainless steels. At similar hardness levels, Crucible 174 SXR offers greater toughness than either the 410 or 416 stainless steels which are commonly used for rifle barrels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming and heat treating. Filing Code: SS-1034. Producer or source: Crucible Service Centers.

Stainless Steels With Improved Oxidation Resistance for Recuperators

2004 ◽  
Vol 128 (2) ◽  
pp. 370-376 ◽  
Author(s):  
Bruce A. Pint
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Oxidation Resistance ◽  
Stainless Steels ◽  
Lower Cost ◽  
Exhaust Gas ◽  
New Materials ◽  
Excellent Corrosion Resistance ◽  
Gas Environment

New materials are being evaluated to replace type 347 stainless steel in microturbine recuperators operating at higher temperatures in order to increase the efficiency of the microturbine. Commercial alloys 120 and 625 are being tested along with potentially lower cost substitutes, such as Fe-20Cr-25Ni and Fe-20Cr-20Ni. Long-term testing of these materials at 650–700 °C shows excellent corrosion resistance to a simulated exhaust gas environment. Testing at 800 °C has been used to further differentiate the performance of the various materials. The depletion of Cr from foils of these materials is being used to evaluate the rate of attack. Although those alloys with the highest Ni and Cr contents have longer lives in this environment, lower alloyed steels may have sufficient protection at a lower cost.

scholarly journals Shear behaviour and design of diagonally stiffened stainless steel plate girders

2019 ◽  
Vol 153 ◽  
pp. 588-602 ◽  
Author(s):  
H.X. Yuan ◽  
X.W. Chen ◽  
M. Theofanous ◽  
Y.W. Wu ◽  
T.Y. Cao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Plate ◽  
Shear Behaviour ◽  
Stainless Steel Plate ◽  
Plate Girders
Sign in / Sign up

Export Citation Format

Share Document