MECHANICAL AND TRIBOLOGICAL PERFORMANCE OF Al-x SiC COMPOSITES PRODUCED BY POWDER METALLURGY TECHNIQUE FOR THROTTLE VALVES APPLICATIONS DOI Creative Commons

Ahmed Abu-Oqail,

Ahmed M. Elmashad,

Mohamed N. El-Sheikh

и другие.

Journal of the Egyptian Society of Tribology /Journal of the Egyptian Society of Tribology, Год журнала: 2024, Номер 21(3), С. 55 - 73

Опубликована: Июль 1, 2024

The present work aims to study the effect of SiC particles addition on themicrostructural, mechanical, and tribological properties Al/SiC compositesproduced by hot compaction powder metallurgy technique. High-energy planetaryball milling was used for mixing pure Al with different particlescontent 2.5, 5, 7.5, 10 wt.% at a speed 350 rpm 12 h. A compactiontechnique produce composites pressure andtemperature 900 MPa 550 ºC, respectively. Theoretical, actual, relativedensities as well porosity percentages were measured. Scanning electron microscopy(SEM) microstructural observations composites.Mechanical tests, which include microhardness compression wereconducted room temperature estimate Vickers number andultimate strength composites. Moreover, wear rateand friction coefficient properties, wereinvestigated under dry sliding conditions pin-on-disc test rig.Based experimental results, all mechanical propertiesshowed significant improvement gradually increasing content upto 10%. Relative density enhanced reached highest value 98 % 0.5 wt.%SiC content. Also, microstructure examination showed that dispersion SiCparticles within matrix good uniform. Hence, microhardnessnumber ultimate compressive results 66.5,and 50.53 %, respectively 5 wt.%. ratecharacteristics Al/7.5 improved 47.3, 47.6, 40.9% applied loads 10, 15 N, compared Al.Finally, their optimumvalues N.

Язык: Английский

Recent trends in coating processes on various AISI steel substrates: A review DOI
Naveen Kumar, Vikas Kumar Choubey

Journal of Materials Science, Год журнала: 2023, Номер 59(2), С. 395 - 422

Опубликована: Дек. 29, 2023

Язык: Английский

Процитировано

9
MECHANICAL AND TRIBOLOGICAL PERFORMANCE OF Al-x SiC COMPOSITES PRODUCED BY POWDER METALLURGY TECHNIQUE FOR THROTTLE VALVES APPLICATIONS DOI Creative Commons

Ahmed Abu-Oqail,

Ahmed M. Elmashad,

Mohamed N. El-Sheikh

и другие.

Journal of the Egyptian Society of Tribology /Journal of the Egyptian Society of Tribology, Год журнала: 2024, Номер 21(3), С. 55 - 73

Опубликована: Июль 1, 2024

The present work aims to study the effect of SiC particles addition on themicrostructural, mechanical, and tribological properties Al/SiC compositesproduced by hot compaction powder metallurgy technique. High-energy planetaryball milling was used for mixing pure Al with different particlescontent 2.5, 5, 7.5, 10 wt.% at a speed 350 rpm 12 h. A compactiontechnique produce composites pressure andtemperature 900 MPa 550 ºC, respectively. Theoretical, actual, relativedensities as well porosity percentages were measured. Scanning electron microscopy(SEM) microstructural observations composites.Mechanical tests, which include microhardness compression wereconducted room temperature estimate Vickers number andultimate strength composites. Moreover, wear rateand friction coefficient properties, wereinvestigated under dry sliding conditions pin-on-disc test rig.Based experimental results, all mechanical propertiesshowed significant improvement gradually increasing content upto 10%. Relative density enhanced reached highest value 98 % 0.5 wt.%SiC content. Also, microstructure examination showed that dispersion SiCparticles within matrix good uniform. Hence, microhardnessnumber ultimate compressive results 66.5,and 50.53 %, respectively 5 wt.%. ratecharacteristics Al/7.5 improved 47.3, 47.6, 40.9% applied loads 10, 15 N, compared Al.Finally, their optimumvalues N.

Язык: Английский

Процитировано

0