EVALUATION OF THE PROPERTIES OF NITRIDED ELECTROLESS NI-B COATING BY CONVENTIONAL AND ACTIVE SCREEN PLASMA NITRIDING

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AHMADKHANIHA D.; MAHBOUBI F.

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Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2011 | Volume:- | Issue:10 Page(s): 69-77

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Title

EVALUATION OF THE PROPERTIES OF NITRIDED ELECTROLESS NI-B COATING BY CONVENTIONAL AND ACTIVE SCREEN PLASMA NITRIDING

Author(s)

AHMADKHANIHA D. | MAHBOUBI F. | Issue Writer Certificate

Keywords

ELECTROLESS NI-BQ3

PLASMA NITRIDINGQ3

ACTIVE SCREEN PLASMA NITRIDINGQ3

WEAR RESISTANCEQ3

Abstract

This project was an attempt to evaluate the effect of PLASMA NITRIDING on properties of ELECTROLESS NI-B coatings. For this purpose ELECTROLESS NI-B coatings were deposited from an alkaline bath on 4140 AISI substrate. Then, coatings were annealed under controlled atmosphere and plasma nitrided by two methods (conventional and active screen) at 450 and 500oC temperatures. Microstructure, surface roughness, micro hardness and WEAR RESISTANCE of the coatings were examined. Results showed that amorphous Ni-B coatings changed to crystalline nickel and nickel borides by annealing and PLASMA NITRIDING, micro hardness increases and wear rate decreased. Although PLASMA NITRIDING increased surface roughness more than annealing, but it improved WEAR RESISTANCE due to increase in the micro hardness of the coatings. It was also found that the active screen PLASMA NITRIDING in comparison to annealing and conventional PLASMA NITRIDING decreased the surface roughness and improved WEAR RESISTANCE.

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References

STRUCTURAL EVALUATION OF PLASMA TREATED ELECTROLESS NI-P COATINGS

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APA: Copy

AHMADKHANIHA, D., & MAHBOUBI, F.. (2011). EVALUATION OF THE PROPERTIES OF NITRIDED ELECTROLESS NI-B COATING BY CONVENTIONAL AND ACTIVE SCREEN PLASMA NITRIDING. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, -(10), 69-77. SID. https://sid.ir/paper/121086/en

Vancouver: Copy

AHMADKHANIHA D., MAHBOUBI F.. EVALUATION OF THE PROPERTIES OF NITRIDED ELECTROLESS NI-B COATING BY CONVENTIONAL AND ACTIVE SCREEN PLASMA NITRIDING. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2011;-(10):69-77. Available from: https://sid.ir/paper/121086/en

IEEE: Copy

D. AHMADKHANIHA, and F. MAHBOUBI, “EVALUATION OF THE PROPERTIES OF NITRIDED ELECTROLESS NI-B COATING BY CONVENTIONAL AND ACTIVE SCREEN PLASMA NITRIDING,” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. -, no. 10, pp. 69–77, 2011, [Online]. Available: https://sid.ir/paper/121086/en

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