Electrochemical Noise Response of Cr2Nb Powders Applying Mechanical Alloying

Cr2Nb alloys are potential candidates for high-temperature structural materials. The influence of different mechanical alloying parameters (milling time) and sintering processes were studied. After mechanical alloying and observation by scanning electron microscope (SEM), nano powders were character...

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Bibliographic Details
Published in:Crystals (Basel) 2022-04, Vol.12 (4), p.482
Main Authors: Nava-Dino, Claudia Georgina, Flores-De los Ríos, Juan Pablo, Maldonado-Orozco, Maria Cristina, Sánchez-Carrillo, Mario, Bautista-Margulis, Raul German, Delgado, Anabel De la Cruz, Almeraya-Calderón, Facundo
Format: Article
Language:English
Subjects:
Alloy powders
Alloys
Ball milling
Chromium base alloys
Corrosion resistance
Crystal structure
Electrochemical analysis
Electrochemical noise
Fiji software
High temperature
Intermetallic compounds
Laves phase
Mathematical functions
Mechanical alloying
Noise
Oxidation
Phase transitions
Plasma sintering
Process controls
Scanning electron microscopy
Sintering (powder metallurgy)
Spark plasma sintering
SPS
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Summary:Cr2Nb alloys are potential candidates for high-temperature structural materials. The influence of different mechanical alloying parameters (milling time) and sintering processes were studied. After mechanical alloying and observation by scanning electron microscope (SEM), nano powders were characterized and then sintered by spark plasma sintering (SPS). Electrochemical noise (EN) tests were also conducted in order to study the electrochemical behavior. From the current experimental results, it was revealed that ball milling times up to 20 h may explain the influence of Nb–Cr alloys and its association to the Laves phase and corrosion behavior. These insights aimed at improving the samples’ predicted behavior before spending time and resources at high-temperature industrial processes.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst12040482