Effect of Carbon Content on Microstructure and Mechanical Properties of Powder Metallurgy Steels

Türkmen, Mustafa

doi:10.1007/s11106-016-9791-2

Cited by 13 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…increasing the pressing pressure possibly reduce the pore size and porosity content [38]. in addition, the formation of pores between the sintered iron particles decreases the mechanical properties of Pm steels [49].…”

Section: Porosity and Pore Morphologymentioning

confidence: 99%

Archives of Metallurgy and Materials

Sazegaran,

Bahari,

Naserian-Nik

et al. 2021

View full text Add to dashboard Cite

And mechAnIcAl ProPerTIes of Powder meTAllurgy sTeelsan experimental study was performed to assess the influences of aluminum content on the porosity, microstructure and mechanical properties of powder metallurgy steels. optical microscope equipped with the image processing software and the scanning electron microscope were employed to study the microstructure of investigated specimens. in order to find mechanical properties of specimens, Vickers hardness and compression tests were conducted. By increasing the aluminum content (from 0 to 4 wt. %), the porosity increases (from 6.01% to 8.43%). The microstructure of specimens contains aluminum phase distributed between the boundaries of agglomerated iron particles, ferrite, and pearlite. By increasing the aluminum content, stress-strain curves shift significantly downwards, and the modulus of elasticity, elongation, yield stress, and Vickers hardness reduce from 1.82 to 0.86 gPa, 32.1 to 17.8%, 138.1 to 28.2 mPa, and 127.7 to 26.8 HV, respectively.

show abstract

Section: Porosity and Pore Morphologymentioning

confidence: 99%

Archives of Metallurgy and Materials

Sazegaran,

Bahari,

Naserian-Nik

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Furthermore, the large voids were detected in the PM steels. The existence of the gaps reveals that the precipitates like MoC (N) detach from the surface during the tensile test[36]. Shanmugasundaram et al[37] in their study observed that these larger voids were created on the examined surfaces of PM steels including Cr, Ni, and Mo, and attributed this situation to the separation of carbide, nitride, and carbonitrides from the surface in the tensile tests.…”

mentioning

confidence: 95%

Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method

Erden

Yaşar

Korkmaz

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

This study presents the impact of molybdenum (Mo) inclusion on microstructure, mechanical, and machinability behavior of steels manufactured with powder metallurgy (PM) approach. PM steel samples with different molybdenum ratios were pressed at 750-MPa pressing pressure and sintered in the atmosphere-controlled tube furnace at 1400°C for 1 h. While particle size and distribution of phases of PM steels with different molybdenum ratios were determined by optical microscope, mechanical properties were determined by applying tensile test. The results were observed that 3% Mo weight-added steel displayed the maximum yield and tensile strength. In addition, the machinability properties of 3% Mo-added steel, which has the highest yield and tensile strength, were investigated. In this work, we researched the thrust force and surface roughness as machinability output, and drilling parameters on the output were determined by utilizing analysis of variance. Finally, SEM images were taken from the inner surfaces of the machined holes and the fractured surfaces from tensile test, and information about the machinability of this alloy produced with PM was presented. As a result, an increase in yield and tensile strength and a reduction in strain were identified with the increase in Mo content. Moreover, the coated cutting tools are better on the machining output than the uncoated cutting tools in terms of green environment. The most important factors on the Fz and Ra are the coating condition and the feed rate with 56.53% and 43.62% PCR, respectively.

show abstract

“…It is widely used in developed countries of the world, and its products find wide application areas in the industry. By using the P/M method, some parts that are difficult to produce and process with other methods can be easily produced in the intended composition [17,18]. In Figure 1, the route followed by the conventional P/M method is given.…”

Section: Introductionmentioning

confidence: 99%