Sintered iron-based antifriction materials with added β-SiC

Chandrasekaran, M.; Singh, Paramanand

doi:10.1016/s0043-1648(96)07355-3

Cited by 12 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Al and Mg are extensively studied for the light-weight composite applications such as structural ribs and outer skins in fighter aircrafts, pistons, cylinder block, connecting rod, and brake rotor in automobiles (Ref 5-7), whereas Cu and Fe are used in the high-temperature brake friction and antifriction material applications such as bearings, seals in gas turbines and jet engines, bushes, electrical contacts, brake pads, brake drum, and disk (Ref [8][9][10]. Large bodies of literature are available in the Mg-, Ti-, Al-, Cu-, and Fe-based MMCs ( Ref 1,3,5,[10][11][12][13]. On the other hand, Ni matrix has not been extensively explored in the wear and friction applications so far, although it has several attractive properties such as (1) high-temperature strength, (2) high corrosion and chemical resistance, (3) extremely low thermal expansion, and (4) hot hardness ( Ref 14).…”

Section: Introductionmentioning

confidence: 99%

Effect of Compaction Load and Sintering Temperature on Tribological and Mechanical Behavior of Ni/SiC/MoS2 Composites

Prabhu

2016

J. of Materi Eng and Perform

View full text Add to dashboard Cite

In the present investigation, the effects of compaction load and sintering temperature on the tribological and mechanical behavior of Ni/20%SiC/7%MoS 2 hybrid composites was studied. The density, compression strength, and hardness of the composites were evaluated and compared. The wear properties of the composites were evaluated for the test condition of 1 m/s speed and 10 N load using a pin-on-disk tribometer. The braking performance of the composites was evaluated in a subscale dynamometer for the 500 kJ energy condition. The microstructure and wear surface morphology of the composites were analyzed by stereo, optical, and scanning electron microscopes. From the results, the following important conclusions are drawn: (1) the compaction load of 1400 kN and sintering temperature of 900°C are optimum to obtain the best combination of tribological and mechanical properties; (2) the properties such as density, compression strength, hardness, wear, and friction increase up to a critical sintering temperature, and then decrease later; (3) the composition and thickness of the interface reaction product phases (Ni 2 Si, Ni 3 Si, and graphite) play a key role in deciding the strength of Ni/SiC interface that consequently affects the mechanical and tribological properties of the composites; (4) the abrasive wear is found to be the main wear mechanism in the highly densified composites, whereas the delamination wear and the thirdbody wear are major wear mechanisms in the poorly densified composites; and (5) the better braking performance of the highly densified composites is attributed to the absence of third-body wear, controlled flow of solid lubricant, and lower porosity.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Compaction Load and Sintering Temperature on Tribological and Mechanical Behavior of Ni/SiC/MoS2 Composites

Prabhu

2016

J. of Materi Eng and Perform

View full text Add to dashboard Cite

show abstract

“…However, the high fabrication cost, complex fabrication methods, poor oxidation resistance at high temperatures, and poor interlaminar properties restricted their use to specialized applications ( Ref 2). Fe/SiC MMCs have been found to be an alternative inexpensive choice and have been studied at both low (Ref [3][4][5][6][7][8] and high-braking speeds (Ref 9). The MMCs with a uniform distribution of 20 % volume fraction reinforcement of SiC in the Fe matrix were found to possess good tribological properties.…”

Section: Introductionmentioning

confidence: 99%

High-Speed Tribological and Mechanical Properties of Layered Fe/SiC Composites

Prabhu

Varma

Vedantam

2014

J. of Materi Eng and Perform

View full text Add to dashboard Cite

In this work, we studied the high-speed tribological and mechanical properties of layered SiC particulate reinforced iron matrix composites. The layered composites consisted of a surface layer with high volume fraction of the reinforcement particles and a layer with low volume fraction in the bulk. The layered composites are a form of functionally graded materials with high wear resistance near the surface and high thermal conductivity in the bulk. The composites were prepared by standard powder metallurgy techniques. The tribological behavior of the composites was evaluated at 25 to 35 m/s sliding speeds using a subscale dynamometer disk brake testing system. The properties of the layered composites were compared to those of uniform composites. The results showed that the layered composites have better wear resistance and braking effectiveness in the range of braking speeds considered. The layered composites also showed higher bending strength than the monolayer composites due to the presence of the interfaces between the layers.

show abstract

“…There are some studies of dry self-lubricant composites manufactured by powder metallurgy with MoS 2 in iron based matrices [2][3][4][5][6]. However, these works focused mainly on mechanical and tribological characterization, and attention is not given to the influence of MoS 2 in the mixtures the possible reactions between the solid lubricant and the matrixes during sintering.…”

Section: Introductionmentioning

confidence: 99%

Sintering Studies and Microstructural Evolution of Fe-MoS<sub>2</sub> Mixtures

Furlan

Assunção

Paz

et al. 2014

MSF

View full text Add to dashboard Cite

The development of dry self-lubricating materials is directly linked to the rising requirements of performance. Iron and steel are the most used metals around the world and molybdenum disulfide (MoS2) one of the most used solid lubricant. Therefore it is expected that one might try to develop self-lubricating steels containing MoS2, however MoS2 reacts with steel matrices during sintering. This work has focused on the study of these reactions; temperatures at which this occurs; the influence of particle sizes and MoS2 content and also MoS2 influence during processing and in the parts properties. The results showed that the reaction occurs at lower temperatures than the predicted and the products are iron-molybdenum and iron sulfides. The sintering studies revealed that MoS2 enhances sintering and the particle size and MoS2 content directly influenced the morphology and chemical composition of the resulting phases.

show abstract

Sintered iron-based antifriction materials with added β-SiC

Cited by 12 publications

References 12 publications

Effect of Compaction Load and Sintering Temperature on Tribological and Mechanical Behavior of Ni/SiC/MoS2 Composites

Effect of Compaction Load and Sintering Temperature on Tribological and Mechanical Behavior of Ni/SiC/MoS2 Composites

High-Speed Tribological and Mechanical Properties of Layered Fe/SiC Composites

Sintering Studies and Microstructural Evolution of Fe-MoS<sub>2</sub> Mixtures

Contact Info

Product

Resources

About