DRY SLIDING WEAR BEHAVIOR OF AI-MG/ZRO2 COMPOSITES PRODUCED VIA PRESSURE LESS INFILTRATION METHOD

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SHARIFI H.; HEYDARI M.; DIVANDARI M.; KHAVANDI A.R.

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Journal: JOURNAL OF NEW MATERIALS Year:2013 | Volume:3 | Issue:4 (12) Page(s): 13-26

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Title

DRY SLIDING WEAR BEHAVIOR OF AI-MG/ZRO2 COMPOSITES PRODUCED VIA PRESSURE LESS INFILTRATION METHOD

Author(s)

SHARIFI H. | HEYDARI M. | DIVANDARI M. | KHAVANDI A.R. | Issue Writer Certificate

Keywords

METAL MATRIX COMPOSITESQ2

PRESSURE LESS INFILTRATIONQ3

WEARQ3

DRY SLIDINGQ3

Abstract

In the present research, the effects of continuous zirconia reinforcement and Mg content of the matrix alloy on the tribological properties of aluminum matrix composites produced via PRESSURE LESS INFILTRATION was investigated. The zirconia foam used as reinforcement was synthesized by replacement method according to the following steps: plunging polymeric (polyurethane) foam in to a ceramic slush, removing the additional slush and pyrolyzing and sintering at elevated temperature. The pure AI and AI alloys with2, 6 and 1Owt"/o Mg content penetrated to the zirconia foam under nitrogen atmosphere. Specimens in the form of discs were thereby used for the WEAR test with a pin-on-disk apparatus using 52100 steel pins. The weight loss and WEAR rate of specimens were measured under 6.5, 26 and 52 N loads and a sliding distance of 900 m. Sliding surface and debris of each specimen was examined by a Scanning Electron Microscope (SEM). Results indicated that reinforced materials have better WEAR resistance in comparison with unreinforced matrix alloys. Under the low load the weight loss was low due to the formation of protective MML (mechanically mixed layer) layer on the surface which prevented the direct contact of metallic and steel surfaces. Under the high load, the oxide layer was not stable and severe WEAR occurred due to the adhesive WEAR mechanism. Increasing the Mg content of the alloys decreased the WEAR rate because of the better wetting of the matrix alloys and the stronger bonding in the matrix-reinforcement interface.

Cites

THE EFFECT OF MILLING TIME AND SINTERING TEMPERATURE ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AL/20% SIC COMPOSITE PREPARED BY POWDER METALLURGY

References

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APA: Copy

SHARIFI, H., HEYDARI, M., DIVANDARI, M., & KHAVANDI, A.R.. (2013). DRY SLIDING WEAR BEHAVIOR OF AI-MG/ZRO₂ COMPOSITES PRODUCED VIA PRESSURE LESS INFILTRATION METHOD. JOURNAL OF NEW MATERIALS, 3(4 (12)), 13-26. SID. https://sid.ir/paper/169999/en

Vancouver: Copy

SHARIFI H., HEYDARI M., DIVANDARI M., KHAVANDI A.R.. DRY SLIDING WEAR BEHAVIOR OF AI-MG/ZRO₂ COMPOSITES PRODUCED VIA PRESSURE LESS INFILTRATION METHOD. JOURNAL OF NEW MATERIALS[Internet]. 2013;3(4 (12)):13-26. Available from: https://sid.ir/paper/169999/en

IEEE: Copy

H. SHARIFI, M. HEYDARI, M. DIVANDARI, and A.R. KHAVANDI, “DRY SLIDING WEAR BEHAVIOR OF AI-MG/ZRO₂ COMPOSITES PRODUCED VIA PRESSURE LESS INFILTRATION METHOD,” JOURNAL OF NEW MATERIALS, vol. 3, no. 4 (12), pp. 13–26, 2013, [Online]. Available: https://sid.ir/paper/169999/en

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