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RISImproved corrosion inhibition of 3-amino-1,2,4- triazole on mild steel electrode in HCl solution using surface nanocrystallization
A nanocrystalline surface layer with average grain size of 77 nm was produced on mild steel through a wire brushing process. Its corrosion behavior was studied in the absence and presence of 3-amino-1,2,4-triazole (3-AT) ...
Surface nanocrystallization and gradient microstructural evolutions in the surface layers of 321 stainless steel alloy treated via severe shot peening
The gradient nanocrystalline structure from the top surface to the subsurface layers of 321 austenitic
stainless steel alloy was fabricated by means of severe shot peening. The microstructural evolutions
including ...
Investigation of Precipitation Hardening of LM22 by Nondestructive Methods
Apart from traditional application of nondestructive eddy current technique for determination of
discontinuities, the method has been recently used to study aging process of 319aluminum alloys manufactured by casting. ...
Enhanced protective properties of epoxy/polyaniline-camphorsulfonate nanocomposite coating on an ultrafine-grained metallic surface
An ultrafine-grained surface layer on mild steel substrate with average grain size of 77 nm was produced through wire brushing process. Surface grain size was determined through transmission electron microscopy and X-ray ...
Severe shot peening of AISI 321 with 1000% and 1 300% coverages: A comparative study on the surface nanocrystallization, phase transformation, sub-surface microcracks, and microhardness
In this study, AISI 321 austenitic stainless steel samples were surface treated using severe shot peening (SSP) with 1 000% and 1 300% coverages. Microstructural features including the grain size, phase transformation, ...
Correlation between the surface coverage of severe shot peening and surface microstructural evolutions in AISI 321: A TEM, FE-SEM and GI-XRD study
Severe shot peening (SSP) as a surface severe plastic deformation (S2PD) process over a wide range of coverages was applied to generate gradient microstructures with the grain size increasing from nanometer- and micron-scale ...
New insights into the effects of surface nanocrystallization on the oxidation of 321 austenitic stainless steel in a humid oxygen environment at 1000 °C
Oxidation behaviour of surface nanocrystallized 321 austenitic stainless steel -SN–321ASS- and its conventional polycrystalline counterpart -CP–321ASS- in O2 + 10% H2O at 1000 °C was comparatively investigated. Uniform ...
Hydroxyapatite coating containing multi-walled carbon nanotubes on AZ31 magnesium: Mechanical-electrochemical degradation in a physiological environment
To control the degradation of magnesium alloys and improve the mechanical performance of common hydroxyapatite -HAp- coatings, a HAp coating containing multi-walled carbon nanotubes -MWCNT- was applied on AZ31 magnesium ...
Carbide Fragmentation and Dissolution in a High-Carbon High-Chromium Steel Using Hot Rolling Process: Microstructure Evolution, Wear, High-Temperature Oxidation, and Chloride-Induced Corrosion Properties
A series of hot rolling processes with different reduction percentages -10%, 30%, and 50%- were applied to a high-carbon high-chromium tool steel -2HCTS-. Microstructural evolutions, wear behavior, high-temperature oxidation, ...
On the material characteristics of a high carbon cast austenitic stainless steel after solution annealing followed by quenching in a CNT nanofluid
Solution annealing followed by quenching in carbon nanotubes
(QCNT) nanofluid treatment was applied to generate
very high interstitial carbon content,&0.30 wt.%, in an austenitic
stainless steel (ASS). ...