Influence of alloying element additions on tribological behaviour of sintered steels with high content in manganese–nickel

Antón, N.; Delgado, Jordi; Velasco, F.; Torralba, J. M.

doi:10.1016/s0924-0136(03)00299-1

Cited by 23 publications

(15 citation statements)

References 6 publications

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“…Ni addition to PM steels decreases porosity rate due to its shrinkage effect. Ni addition also increases the hardenability of P/M steels significantly [4,5]. Phases such as Ni-rich ferrite and martensite, which were observed in the microstructures of Ni added PM steels, contribute to the improvement of the mechanical properties of PM steels [1,2].…”

Section: Introductionmentioning

confidence: 97%

Effect of intercritical annealing and quenching plus tempering heat treatments on microstructure of Ni added powder metallurgy steels

Tekeli

Güral

2007

Materials & Design

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Section: Introductionmentioning

confidence: 97%

Effect of intercritical annealing and quenching plus tempering heat treatments on microstructure of Ni added powder metallurgy steels

Tekeli

Güral

2007

Materials & Design

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“…After the carburizing treatment is completed, the components are quenched to obtain the required hardness, wear resistance and fatigue resistance on the surface, supported by a tougher core [6]. The mechanical behavior of sintered steels have been studied mainly by tensile and impact testing procedures [7]. However, the demand for components displaying an adequate resistance under heavy stress conditions, e.g.…”

Section: Introductionmentioning

confidence: 99%

The microstructure and wear behaviour of sintered Astaloy 85Mo

Öksüz¹,

Gün²,

Şi̇mşi̇r³

2014

WIT Transactions on the Built Environment

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Powder metallurgy enables cost effective production of powder metallurgy (PM) parts with complex geometries in automotive applications. PM materials are also extensively used for the production of components subjected to working conditions giving rise to sliding, rolling or abrasive wear, such as gears or cams. In this experimental study, Fe based pre-alloyed Astaloy 85Mo powder was used in the production of camshaft spur gear. The gas carburizing is carried out at 925°С for 3 hours. The camshaft spur gears were waited at 850°С for 1 hour to reach the required carbon concentration. Oil hardening is carried out at 82°С, soaking time is 30 min. The effect of gas carburizing on the microstructure, density, hardness and wear properties of Astaloy 85Mo+0.5% graphite was investigated. Furthermore, the microstructure characterization and worn surfaces of camshaft spur gear were examined using a high magnification optical microscope.

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“…Lorella ceschini et al [13] studied the wear behavior of sintered steel under both dry sliding and abrasive wear conditions and concluded that the best behavior was observed for the more hardenable steel, under dry sliding conditions giving rise to bainitic microstructures and the sintering temperature along with compacting pressure plays a determining role improvement of the resistance to sliding wear. It has been found by Anton et al [14] that the addition of 0.7%C to plain carbon steels enhances their wear behaviour as compared to 0.3%C addition, due to the formation of higher volume of pearlite phase in the ferritic microstructure. Philip m. mckenna [15] successfully invented a carbide containing tungsten and titanium which is extremely hard and highlighted its great value and utility as a material for use, in accordance with the customary principles of powder metallurgy, in the production of hard compositions of matter, in order to attain great hardness combined with great strength, along with a low thermal conductivity and other characteristics.…”

Section: Introductionmentioning

confidence: 99%

Influence of Titanium on dry sliding Wear Behaviour of Sintered P/M low Alloy Steel (Fe-C-W)

Prabu

Prathiba

Venkatesan

et al. 2014

Procedia Engineering

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Powder metallurgy (P/M) manufacturing process is one of the rapidly emerging fields and has extended the applications in aerospace, automotive, manufacturing industries replacing all traditional methods of metal forming operations because of its less energy consumption, maximum material utilization, low relative material wastage, low capital cost. The mechanical properties is mainly depends on the final density of sintered P/M alloys. The typical microstructure characteristics of sintered steel represent an important parameter affecting their wear behaviour. The present research work pertains to the study of dry sliding wear characteristics of sintered P/M Fe-1%C-1%W-1%Ti low alloy steel with different densities (85%, 90%, 95%), as they find several applications in manufacturing industries, particularly in automobile industries. These components usually face workingconditions involving abrasion, rolling and sliding, making it important to study the wear phenomenon. The wear behavior of the as-sintered preforms were studied under dry conditions on pin-on disc arrangement (ASTM G99) against EN 38 steel disc of Hardness HRC 60 with a sliding speed of 2 m/s and at a normal loads of 30, 50, 70N respectively. Wear mechanism of the worn out surfaces and microstructure of sintered P/M alloy steel has been characterized using both optical microscopy and SEM. Ferritic-pearlite microstructure are revealed from the as-sintered P/M alloy steels. Wear rate increases gradually with increase in porosity with respect to applied load. The main wear mechanism in the Ti alloyed P/M steel seems to be delamination wear in the higher load and oxidation wear at lower load. Failure by a delamination process is clearly indicated by the shape of the debris particles.

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Influence of alloying element additions on tribological behaviour of sintered steels with high content in manganese–nickel

Cited by 23 publications

References 6 publications

Effect of intercritical annealing and quenching plus tempering heat treatments on microstructure of Ni added powder metallurgy steels

Effect of intercritical annealing and quenching plus tempering heat treatments on microstructure of Ni added powder metallurgy steels

The microstructure and wear behaviour of sintered Astaloy 85Mo

Influence of Titanium on dry sliding Wear Behaviour of Sintered P/M low Alloy Steel (Fe-C-W)

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