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Research Papers: Applications

Effect of Surface Properties Modification on Slurry Erosion–Corrosion Resistance of AISI 5117 Steel

[+] Author and Article Information
B. Saleh

Department of Mechanical Engineering,
Taif University,
Taif 21944, Saudi Arabia
Department of Mechanical Engineering,
Assiut University,
Assiut 71516, Egypt
e-mail: bahaa_saleh69@yahoo.com

A. Abouel-Kasem

Department of Mechanical Engineering,
King Abdulaziz University,
P.O. Box 344,
Rabigh 21911, Saudi Arabia
e-mail: aaahmed2@kau.edu.sa

S. M. Ahmed

Department of Mechanical Engineering,
Majmaah University,
North Riyadh 11952, Saudi Arabia
e-mail: shemy2007@yahoo.com

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received May 23, 2014; final manuscript received February 26, 2015; published online April 15, 2015. Assoc. Editor: Robert L. Jackson.

J. Tribol 137(3), 031105 (Jul 01, 2015) (8 pages) Paper No: TRIB-14-1114; doi: 10.1115/1.4029997 History: Received May 23, 2014; Revised February 26, 2015; Online April 15, 2015

The erosion–corrosion (E–C) wear behaviors of electroless nickel phosphorus (Ni-P) coating, carburizing and untreated low alloy steel AISI 5117 in water–sand slurry and saline–sand slurry were investigated using whirling-arm tester. The E–C wear mass loss was measured to evaluate the effect of mediums and surface modifications. The microstructure of carburizing and Ni-P coating was analyzed using an optical and scanning electron microscope (SEM) and X-ray diffraction (XRD) technique. Results showed that Ni-P coating and carburizing are effective in increasing wear resistance of low alloy steel. However, the Ni-P coating is more effective in increasing the E–C resistance. Also, the results showed that Ni-P coating, carburizing and untreated carbon steel behaved as ductile materials under erosion and E–C tests, and the maximum mass loss occurred at an impact angle of 45 deg. The synergism ratio was the lowest for the Ni-P coating, indicating that Ni-P coating improved an anti-E–C wear resistance.

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Figures

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Fig. 1

Schematic diagram of the designed slurry erosion whirling arm

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Fig. 2

Schematic diagram of impact velocity and impact angle

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Fig. 3

Morphology of sand particles used in slurry flow

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Fig. 4

(a) Ni-P coating SEM micrographs cross section, x: thickness of Ni-P deposit, (b) XRD pattern of the as-deposited Ni-P alloy, and (c) XRD pattern of the Ni-P alloy coating annealed at 650 °C for 1 hr

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Fig. 5

Microstructures of carburized steel (a) and hardness profile (b)

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Fig. 6

Mass loss for Ni-P coating, carburizing and untreated steel versus mass of erodent in water–sand slurry and saline–sand slurry at an impact angle of 45 deg

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Fig. 7

Wear resistance of Ni-P coating, carburizing and untreated steel

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Fig. 8

Relationship between the mass loss rate and impact angle in water–sand slurry and saline–sand slurry

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Fig. 9

Mass loss and synergism of Ni-P coating versus mass of erodent

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Fig. 10

Mass loss and synergism of carburizing versus mass of erodent

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Fig. 11

Mass loss and synergism of untreated steel versus mass of erodent

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