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Magazine articles
SCC susceptibility of chromized type 409 stainless steel in alkaline chloride solutions at ambient temperature and pressure, TAPPI Journal August 2023
ABSTRACT: Biomass hydrothermal liquefaction (HTL) is operated in a harsh reaction medium that contains hot pressurized water, inorganic acidic or basic catalyst, and inorganic/organic corrosive components released during the conversion. Candidate alloys for this application require suitable resistance to both corrosion and stress corrosion cracking (SCC) to withstand the HTL process conditions (250°C•374°C and 4•22 MPa). Ferritic iron-chromium (Fe-Cr) steels are more prone to corrosion but less susceptible to SCC compared to austenitic iron-chromium-nickel (Fe-Cr-Ni) steels. Chromizing can significantly reduce corrosion of Type 409 stainless steel (Fe-11Cr) in a simulated aqueous HTL solution. The objective of this study is to determine the SCC susceptibility of chromized Type 409 stainless steel, relative to the bare (non-chromized) case. The slow strain rate testing (SSRT) technique was used for this purpose. For simplicity of experimentation, SSRT was conducted using simulated HTL water containing 800 ppm potassium chloride (KCl), 1 M potassium carbonate (K2CO3), and 10 wt% acetic acid at ambient temperature and pressure. Complementary potentiodynamic polarization measurements and surface analysis by X-ray photoelectron spectros-copy (XPS) were also made to help interpret the SSRT results. The SSRT results show no significant difference in SCC susceptibility, regardless of the starting surface. Thus, chromizing, while significantly reducing the corrosion of Type 409 stainless steel, does not adversely affect SCC susceptibility, at least under the conditions tested.
Journal articles
An elliptical pore model for the mechanical properties of pa
An elliptical pore model for the mechanical properties of paper, TAPPI JOURNAL August 2015
Journal articles
Fast evaluation of spatial coating layer formation using ultraviolet scanner imaging
Fast evaluation of spatial coating layer formation using ultraviolet scanner imaging
Journal articles
Some observations towards improved predictive models for box compression strength, TAPPI JOURNAL August 2015
Some observations towards improved predictive models for box compression strength, TAPPI JOURNAL August 2015
Conference papers
Changing the Way We Think About Corrugated
Changing the Way We Think About Corrugated, 2015 CorrExpo Conference
Conference papers
New Engraving Technology for Glue Applicator Rollers, 2015 C
New Engraving Technology for Glue Applicator Rollers, 2015 CorrExpo Conference
Conference papers
Nanotechnology - How to Think “Inside the Box”, 2015 CorrExp
Nanotechnology - How to Think “Inside the Box”, 2015 CorrExpo Conference
How to start up and cool down your extrusion coating equipme
How to start up and cool down your extrusion coating equipment efficiently?, 2015 TAPPI European PLACE Conference
Advantages of Butt Splicing in Extrusion Coating
Advantages of Butt Splicing in Extrusion Coating, 2015 TAPPI European PLACE Conference