Influence of processing parameters on the porosity, thermal expansion, and oxidation behavior of consolidated Fe22Cr stainless steel powder

Öztürk, Bülent; Topcu, Alparslan; Cora, Ömer Necati

doi:10.1016/j.powtec.2020.12.072

Cited by 7 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SS components synthesized via PM constitute a major and growing segment of the PM industry [ 2 , 3 , 4 ]. Amongst the SS families, austenitic SSs exhibit superior mechanical and electrochemical properties [ 5 ] and find their applications in automotive, marine, food, biomedical industry, and high-temperature applications [ 6 ]. However, synthesis of PM ferritic SSs components is gaining popularity due to their lower production cost, considerable corrosion resistance [ 7 , 8 , 9 ], and mechanical properties [ 10 ], and they are frequently used in automotive exhaust systems, containers [ 11 ], solid oxide fuel cells [ 6 ], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, Martin et al [ 11 ] reported the effect of slower cooling rates in increasing the density of the alloys. Furthermore, Ozturk et al [ 6 ] reported an increase in densification with an increase in compaction pressure. Along with optimization of sintering parameters for maximum densification, some alloying additions are reported to enhance the overall compaction of sintered specimens.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Insight into Structural Changes and Electrochemical Properties of Spark Plasma Sintered Nanostructured Ferritic and Austenitic Stainless Steels

et al. 2022

View full text Add to dashboard Cite

Nanostructured ferritic (Fe(82−x)-Cr18-Six, x = 0–3 wt %) and austenitic (Fe(73−x)-Cr18-Ni9-Six, x = 0–3 wt %) stainless steel (SS) alloys were developed by mechanical alloying (MA) and spark plasma sintering (SPS). The unit cell parameter estimated from X-ray diffraction spectra exhibited a decreasing trend with an increase in wt % of Si content in both alloy systems. The particle size of powders estimated using bright field transmission electron microscopy images for ferritic (3 wt % Si) and austenitic (3 wt % Si) SS powders was found to be 65 ± 5 nm and 18 ± 3 nm, respectively. In case of the ferritic system, 3 wt % Si exhibited the highest densification (~98%) and micro-hardness of about 350.6 ± 11.2 HV, respectively. Similarly, for the austenitic system (3 wt % Si), maximum densification and micro-hardness values were about 99% and 476.6 ± 15.2 HV, respectively. Comparative analysis of potentiodynamic polarization, linear polarization, and electrochemical impedance spectroscopy results indicates an increase in electrochemical performance of both alloy systems as the wt % Si was increased. The increase in electrochemical performance is directly related to the increase in densification owing to Si addition in these alloys.

show abstract