scholarly journals Corrosion Behavior of Construction Materials for Intermediate Temperature Steam Electrolysers

2013 ◽  
Vol 699 ◽  
pp. 596-605 ◽  
Author(s):  
Aleksey V. Nikiforov ◽  
Irina M. Petrushina ◽  
Jens Oluf Jensen ◽  
Niels J. Bjerrum
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Construction Materials ◽  
Intermediate Temperature ◽  
Aisi 316L ◽  
Corrosion Stability ◽  
Metal Phosphates ◽  
High Corrosion ◽  
Steel Aisi ◽  
Stainless Steel Aisi

Different corrosion resistant stainless steels, nickel-based alloys, pure nickel, Ta-coated stainless steel (AISI 316L), niobium, platinum and gold rods were evaluated as possible materials for use in the intermediate temperature (200-400 °C) acidic water electrolysers. The corrosion resistance was measured under simulated conditions (molten KH2PO4) corresponding to the proton-conducting solid acids or transition metal phosphates as electrolytes. It was shown that, unlike at temperatures below 200 °C, gold is unstable with respect to corrosion in molten KH2PO4. Platinum demonstrated high corrosion resistance and the anodic and cathodic limits were for the first time found for the electrolyte. Nickel, niobium, Inconel®625, Hastelloy®C-276 and Ta-coated stainless steel (AISI 316L) demonstrated high corrosion stability and can be recommended as construction materials for bipolar plates.

The Effect of Laser Shock Processing on Corrosion Resistance of Stainless Steel AISI 316L

2014 ◽  
Vol 216 ◽  
pp. 210-215 ◽  
Author(s):  
Ionut Bogdan Roman ◽  
Mircea Horia Tierean ◽  
Liana Sanda Baltes ◽  
Julia Mirza Rosca
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Aisi 316L ◽  
Laser Shock ◽  
Stainless Steel 316L ◽  
Laser Shock Processing ◽  
Pulse Density ◽  
Steel Aisi ◽  
Shock Processing ◽  
Stainless Steel Aisi

The paper presents the effect of laser shock processing on stainless steel 316L corrosion resistance. The samples were laser welded and mechanical treated using a Nd:YAG laser with a 1064 nm wavelength, and two different pulse density: 900 pulse/cm2 and 1600 pulse/cm2. After the laser shock processing, the samples were subjected to a seawater solution for corrosion testing. The curves obtained were statistically modeled using Stern-Geary equation. One may observe that the corrosion speed of the LSP samples treated with 900 pulse/cm2 is eight times higher than the corrosion speed of the LSP samples treated with 1600 pulse/cm2.

AL TECH MIAMI

Alloy Digest ◽  
1983 ◽  
Vol 32 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Heat Treating ◽  
Good Resistance ◽  
Aisi Type ◽  
Steel Aisi ◽  
Resistance To Wear ◽  
Specialty Steel ◽  
Stainless Steel Aisi ◽  
Plastic Mold

Abstract AL TECH MIAMI is both a hardenable stainless steel (AISI Type 420) and a tool steel for making molds for plastic. A major requirement for plastic mold steel is corrosion resistance. Certain plastics, such as poly-vinyl chlorides, are very corrosive and stored molds often rust from sweating water lines and/or humid environments. AL TECH MIAMI has good resistance to wear. It is melted and AOD refined to assure the mold-maker of cleanliness and freedom from internal imperfections. It provides exceptionally good polishability for lens-quality molds. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-435. Producer or source: AL Tech Specialty Steel Corporation.

Residual Stress Analysis in Deep Rolling Process on Gas Tungsten Arc Weld of Stainless Steel AISI 316L

2021 ◽  
Vol 880 ◽  
pp. 23-28
Author(s):  
Warinthorn Thanakulwattana ◽  
Wasawat Nakkiew
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Surface Layer ◽  
Compressive Residual Stress ◽  
Aisi 316L ◽  
Deep Rolling ◽  
Gas Tungsten Arc ◽  
Steel Aisi ◽  
Gas Tungsten ◽  
Stainless Steel Aisi

Because of the general problem of the welding workpiece such as fatigue fracture caused by tensile residual stress lead to initial and propagation crack in the fusion zone. Thus, the mechanical surface treatment of deep rolling on Gas Tungsten Arc Welded (GTAW) surfaces of AISI 316L was studied. Deep rolling (DR) is a cold working process to induce compressive residual stress in the surface layer of the workpiece resulting in hardening deformation which increased surface hardness, and smooth surface that inhibit crack growth and improve fracture strength of materials. The present study focuses on compressive residual stress at the surface of stainless steel AISI 316L butt welded joint of GTAW. The three parameters of DR process were used; pressure 150 bar, rolling speed 400 mm/min, and step over 1.0 mm. The residual stresses analysis by X-ray diffraction with sin2Ψ method at 0, 5, 10, and 20 mm from the center of the welded bead. The results showed that the DR process on the welded of GTAW induce the minimum compressive residual stress-408.6 MPa and maximum-498.1 MPa in longitudinal direction. The results of transverse residual stress in minimum and maximum are 43.7 MPa and-34.8 MPa respectively. The FWHM of DR both longitudinal and transverse direction were increased in the same trend. Furthermore, the microhardness after DR treatment on workpiece surface layer higher than GTAW average 0.4 times.

Characterisation of porosity, density, and microstructure of directed energy deposited stainless steel AISI 316L

2019 ◽  
Vol 25 ◽  
pp. 286-296 ◽  
Author(s):  
Zhi’En Eddie Tan ◽  
John Hock Lye Pang ◽  
Jacek Kaminski ◽  
Helene Pepin
Keyword(s):  
Stainless Steel ◽  
Aisi 316L ◽  
Steel Aisi ◽  
Directed Energy ◽  
Stainless Steel Aisi

scholarly journals Dataset of the synthesis parameters to deposit YSZ on stainless steel AISI 316L by sputtering technique

Data in Brief ◽  
2019 ◽  
Vol 26 ◽  
pp. 104480
Author(s):  
Z.E. Sánchez-Hernández ◽  
M.A. Domínguez-Crespo ◽  
A.M. Torres-Huerta ◽  
D. Palma-Ramírez ◽  
E. Onofre-Bustamante ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Aisi 316L ◽  
Synthesis Parameters ◽  
Steel Aisi ◽  
Stainless Steel Aisi

Fatigue Failure of Hydroformed AISI 316L Stainless Steel Bellows

2015 ◽  
Vol 830-831 ◽  
pp. 713-716
Author(s):  
Sushant Manwatkar ◽  
S.V.S. Narayana Murty ◽  
P. Ramesh Narayanan
Keyword(s):  
Stainless Steel ◽  
Low Temperatures ◽  
316L Stainless Steel ◽  
Launch Vehicles ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel ◽  
Metallurgical Analysis ◽  
Steel Aisi ◽  
Inner Diameter ◽  
Stainless Steel Aisi

Austenitic stainless steel AISI 316L is used for components of cryogenic engine in satellite launch vehicles due to its better mechanical properties at low temperatures. In one such application, AISI 316L stainless steel bellows are used in electro-pneumatic command valve of a cryogenic engine. This valve employs a hydro-formed bellow of 0.14mm thickness as an actuator element. When one of the electro-pneumatic command valve was vibrated without pressure, crack was noticed at the inner diameter of the bellow. Detailed metallurgical analysis indicated that the cracking to be due to fatigue.

The Influence of Sandblasting and Electropolishing on the Surface Hardness of AISI 316L Stainless Steel

2014 ◽  
Vol 896 ◽  
pp. 517-520 ◽  
Author(s):  
Suyitno ◽  
Ishak
Keyword(s):  
Stainless Steel ◽  
Mass Fraction ◽  
Surface Hardness ◽  
Silica Sand ◽  
Maximum Output ◽  
Aisi 316L ◽  
Working Pressure ◽  
Dc Power ◽  
Steel Aisi ◽  
Stainless Steel Aisi

The purpose of this study is to analyze the effect of sandblasting and electropolishing on microstructure and hardness of stainless steel AISI 316L. The equipment used was sandblasting machine with a working pressure of 5-7 kg/cm2 with a duration of 10 minutes. The silica sand was used with size of 500-800 μm. The equipment used in the electropolishing process is the DC power supply with a maximum output of 2x100A. Anode and cathode material were stainless steel AISI 316L. Electrolyte solution consisted of 96% mass fraction of sulfuric acid and 85% mass fraction of phosphoric acid with a ratio of 1:1. The parameters used in the electropolish process were voltage of electrical, distance of electrodes and duration of electropolishing process. The results show that increasing the voltage, decreasing the distance, and increasing the duration of the electropolishing process increase the hardness up to 69%.

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