Effect of heating mode on sinterability of carbonyl iron compacts

Annamalai, A. Raja; Nekatibeb, Felege; Upadhyaya, Anish; Agrawal, Dinesh Kumar

doi:10.1179/1433075x12y.0000000011

Cited by 8 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With regard to pore morphology, no difference in distribution and shape of the pores was noticed between the samples produced by CS and MWS. More rounded pores in microwave sintered samples, reported previously, 22,23 were not observed in microstructures of SS and composite samples produced in the present work.…”

Section: Ss/ep Compositessupporting

confidence: 60%

Structure and properties of SiC and emery powder reinforced PM 316l matrix composites produced by microwave and conventional sintering

et al. 2014

View full text Add to dashboard Cite

In this work, PM 316L based composite materials reinforced with SiC and emery powders in amounts of 5, 10 and 15 vol.-% were produced. The mixed powders were compacted by uniaxial pressing at 700 MPa and processed at 1160 and 1250uC for 1 h by means of conventional sintering and microwave sintering. The sintering atmospheres were Ar/H 2 95/5% for conventional sintering and Ar/H 2 90/10% for microwave sintering. Mechanical properties were evaluated with transverse rupture strength (TRS) tests. Densities and porosities were determined using Archimedes method. Sintered samples were characterised by optical microscopy and SEM. All of the composite materials had lower TRS values compared with 316L base material. Among all compositions, 5 vol.-% emery powder reinforced 316L alloy composite samples exhibited the most favourable mechanical and physical properties. The 10 vol.-%SiC containing composite samples also had acceptable properties. Moreover, microwave sintering yields better mechanical and physical properties.

show abstract

Section: Ss/ep Compositessupporting

confidence: 60%

Structure and properties of SiC and emery powder reinforced PM 316l matrix composites produced by microwave and conventional sintering

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The fast rate of heating and cooling in the microwave sintering process forms refined grains in the microstructure. The cavities or pores are significantly less in the microwave sintering process due to the broad area of metal contact [7]. Graphite, when added with Fe-Cu alloy, acts as a barrier for Cu in grain boundary penetration.…”

Section: Introductionmentioning

confidence: 99%

Processing of Spark Plasma Sintered Fe Alloy and Enhancing Its Surface Properties by AlCrN Monolayer Coating by Cathodic Arc Plasma Physical Vapor Deposition Process

et al. 2020

Self Cite

View full text Add to dashboard Cite

The current investigation observes the outcome of enhancing the surface properties by AlCrN monolayer coating using the cathodic arc plasma method on the Fe–Cu–C–Mo alloys. The compacts were sintered in spark plasma sintering (SPS) with the heat transfer rate of 100 °C/min at 1120 °C for 5 minutes. The Fe–2Cu–0.8C–0.6Mo sample has the highest relative sintered density (97.20%), hardness (96 HRB), and ultimate tensile strength (1000 MPa) compare with the other sintered compacts. AlCrN coating was deposited on Fe, Fe–2Cu, Fe–2Cu–0.8C, Fe–2Cu–0.8C–0.2Mo, Fe–2Cu–0.8C–0.4Mo, and Fe–2Cu–0.8C–0.6Mo samples, using the cathodic arc plasma–physical vapor deposition (CAP-PVD) process. The coated compact samples’ metallography images were examined using a Scanning Electron Microscope (SEM); the Fe–2Cu alloy sintered sample has obtained a uniform structure with high density and a smaller amount of corrosion penetration rate (0.6579 mmpy) as compared to the counterparts. The phase formed in the AlCrN coating was analyzed using the X-ray Diffraction (XRD). The Fe–2Cu–0.8C–0.6Mo coated compact sample exhibited higher hardness (1134.85 HV0.3) than the other coated compact samples. The Fe–2Cu–0.8C–0.2Mo coated compact sample has proven better corrosion resistance compared to the other coated compact sample.

show abstract

“…Microwave sintering has been used widely for sintering of ceramics and hard metals, until Roy et.al 8 showed effective coupling of microwaves and metals in powder form. Later on many researchers have reported microwave sintering of many compacts fabricated through powder metallurgy and alloyed compositions (steel, stainless steel, copper, Al, Ni, Mo Co, Ti, Sn, etc) to nearly full density with improved mechanical properties [9][10][11][12][13][14][15][16][17][18][19][20][21] . Spark plasma sintering (SPS) incorporates pressure to form solid powder in the presence of a pulsed direct current during the consolidation of powder in a graphite die.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Electrochemical behaviour of Aluminium Alloy Composites Produced Using Different Sintering Techniques

et al. 2018

Self Cite

View full text Add to dashboard Cite

Present research work analyses the effect of heating modes on the densification, microstructure and mechanical properties of aluminum alloys [65Al-20Cu-15Mn] fabricated through powder metallurgy route. Sintering of compacts using conventional, microwave and spark plasma sintering methods has been carried out at 525°C. From the results, it has been observed that the spark plasma sintering method produced the samples with better mechanical properties than the other two methods, followed by microwave and conventionally sintered counterparts. Microstructural analysis using optical microscopy revealed that spark plasma sintered sample has finest microstructure due to faster rate of heating than microwave and conventional methods.

show abstract

Effect of heating mode on sinterability of carbonyl iron compacts

Cited by 8 publications

References 20 publications

Structure and properties of SiC and emery powder reinforced PM 316l matrix composites produced by microwave and conventional sintering

Structure and properties of SiC and emery powder reinforced PM 316l matrix composites produced by microwave and conventional sintering

Processing of Spark Plasma Sintered Fe Alloy and Enhancing Its Surface Properties by AlCrN Monolayer Coating by Cathodic Arc Plasma Physical Vapor Deposition Process

Microstructural and Electrochemical behaviour of Aluminium Alloy Composites Produced Using Different Sintering Techniques

Contact Info

Product

Resources

About