Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder

Chen, Wenchao; Cheng, Jigui; Chen, Pengqi; Zhang, Jianhua; Wei, Bangzheng

doi:10.3390/ma12030417

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Another study in which Mo was added to the Fe-Cu-C base alloy was conducted by Chen et al. 34 In their study, elemental Mo powder was added to the composition in 3 different forms pre-alloyed Fe-Mo powder and mechanically alloyed Fe-Mo powder. Alloys with Fe-2Cu-0.8C and 2 Mo wt.% compound were compressed in 500–800 MPa in the hot mould heated to 120°C after mixing it for 2 h in the V-mixer.…”

Section: Resultsmentioning

confidence: 99%

The influence of alloying elements on tribological properties of Fe-Cu-C based metal matrix composite bearing materials produced by powder metallurgy

Yavuz

Eyri

Yamanoğlu

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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Bearing materials are used in many industrial applications such as automotive, marine, aviation and hydroelectric power plants. Powder metallurgy is preferred because it is economically more advantageous in the production of this type of material. The main requirement in bearing materials is high tribological properties at a low cost. Therefore, the lower coefficient of friction and wear rate in the bearing materials are among the desired properties. In this regard, the tribological properties and other mechanical, physical, and microstructural properties of the produced samples were investigated in this study. Copper and graphite powder with 5 wt.% Mo, Ni, Al, Cr, and W was added to the base alloy of iron. After the production, density measurements, microstructural characterizations, hardness measurements, and dry friction wear tests were carried out on the samples. Analyzing the results, it was found that the highest density value was achieved in the base alloy. Furthermore, a density of over 90% was achieved in all samples. On the other hand, predominantly ferrite and pearlite phases were observed in the microstructure. When the hardness results were examined, it was determined that the Cr added alloys had maximum hardness. In the evaluation of tribological properties, it was shown that Ni alloy had the lowest friction coefficient and Al alloy had the highest friction coefficient. Considering the wear rates, it was seen that the alloy with the lowest wear rate was Cr and the highest wear rate was the alloy with Al additives.

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Section: Resultsmentioning

confidence: 99%

The influence of alloying elements on tribological properties of Fe-Cu-C based metal matrix composite bearing materials produced by powder metallurgy

Yavuz

Eyri

Yamanoğlu

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…In Figure 4f Fe-2Cu-0.8C-0.6Mo alloy fractography is showing the brittle type of fracture surface. Increasing the Mo content strength of the material increases, it influences the ductile type fracture surface and is converted to the inter-crystalline and trans-crystalline fracture [25]. surface area increases.…”

Section: Tensile Test Analysismentioning

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

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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.

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“…Diffusion bonded powders eliminate segregation problem. Chen et al, 2018 have investigated addition of different pure Mo powder, prealloyed Mo-Fe powder and mechanically alloyed Mo-Fe powder in Fe-2Cu-0.8C using warm compacted sintered alloys and reported sintered samples prepared with mechanically alloyed Fe-Mo powders exhibited better microstructure and mechanical & wear properties (Chen et. al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Homogenization Study of Molybdenum and Copper in P/M Steel

Rathore¹,

Singh²,

Joshi³

et al. 2022

JER is an international, peer-reviewed journal that publishes f

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Homogenization of 3wt% Molybdenum addition in Fe-0.7C alloy in the presence of 2wt% Cu under sinter-forged condition has been carried out. Samples alloys have been fabricated by sinter-forging route using elemental powders. Sintering was carried out at 1150oC in N2-10%H2 atmosphere. The sintered samples were immediately forged using 100-ton friction screw forging press at the sintering temperature. Homogenization studies were carried out in two steps, the preliminary study was carried out on a press-sinter-forged compact while the final study was carried out on sinter-forged slab prepared by capsule forging. Homogenization temperature was kept at 1250oC (heating rate of 10oC / min) in flowing N2-10%H2 atmosphere for various durations between 1-5 hr. The extent of Mo and Cu dissolution in the Fe matrix of homogenized samples was ascertained using microstructural characterization under optical microscope, SEM and EDS analysis. The influence of initial powder particle size, sintering tempera ture and homogenization temperature & duration on homogenization behavior have been discussed in length.

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Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder

Cited by 3 publications

References 23 publications

The influence of alloying elements on tribological properties of Fe-Cu-C based metal matrix composite bearing materials produced by powder metallurgy

The influence of alloying elements on tribological properties of Fe-Cu-C based metal matrix composite bearing materials produced by powder metallurgy

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

Homogenization Study of Molybdenum and Copper in P/M Steel

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