a corrosion study of grain-refined 304l stainless steels produced by the martensitic process

A Corrosion Study of Grain-Refined 304L Stainless Steels Produced by the Martensitic Process

AISI 304L austenitic stainless steel with different grain sizes of 0.5 -12 μm was obtained through the martensitic process. Corrosion behavior of different samples was investigated in a 0.5M HCl solution using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy tests. Also, the correlation between the grain size and pitting corrosion resistance was as...

Transient liquid phase bonding of AISI 304L stainless steels with the austenitic and martensitic microstructures

In the present study, the effect of time and base metal microstructure on the Transient Liquid Phase (TLP) bonding of 304L stainless steel was studied. TLP was performed at 1050 0C for 5 and 60 minutes on the coarse grain austenitic and martensitic microstructure using BNi-2 interlayer. To prepare martensitic microstructure, as-received 304L was rolled at -15 0C up to 80% rolling reduction. TEM...

Transient liquid phase bonding of AISI 304L stainless steels with the austenitic and martensitic microstructures

In the present study, the effect of time and base metal microstructure on the Transient Liquid Phase (TLP) bonding of 304L stainless steel was studied. TLP was performed at 1050 0C for 5 and 60 minutes on the coarse grain austenitic and martensitic microstructure using BNi-2 interlayer. To prepare martensitic microstructure, as-received 304L was rolled at -15 0C up to 80% rolling reduction. TEM...

Study of the Corrosion Resistance of Type 304L and 316 Austenitic Stainless Steels in Acid Chloride Solution

The corrosion resistance of type 304L and 316 austenitic stainless steels in 2M H2SO4 at 0-1.5%NaCl concentrations was studied through potentiodynamic polarization technique and optical microscopy analysis. The corrosion rate, pitting potential, passivation potential and surface morphology of both steel where significantly altered by the Clion concentration, alloy composition and metallurgical ...

Stress Corrosion Cracking Resistance of Martensitic Stainless Steels for Transmutation Applications

Grain Boundary Oxidation and the Chromium- Depletion Theory of Intercrystalline Corrosion of Austenitic Stainless Steels

High temperature microscopy during oxidation of austenitic stainless steels shows that an increased rate of oxidation is found in a narrow zone along grain boundaries where chromium carbides have been precipitated. This lends support to the chromium-depletion theory of intercrystatline corrosion of these steels. Approximate solution of the appropriate diffusion problem shows good agreement with...