SURFACE CHARACTERIZATION OF ACTIVE SCREEN PLASMA NITRIDE LOW ALLOY STEEL (DIN 1.6580)

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TAHERKHANI F.; MAHBOUBI F.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2010 | Volume:- | Issue:8 Page(s): 1-12

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Title

SURFACE CHARACTERIZATION OF ACTIVE SCREEN PLASMA NITRIDE LOW ALLOY STEEL (DIN 1.6580)

Author(s)

TAHERKHANI F. | MAHBOUBI F. | Issue Writer Certificate

Keywords

PLASMA NITRIDINGQ3

ACTIVE SCREEN METHOD (ASPN)Q4

LOW ALLOY STEELQ3

SURFACE HARDENINGQ2

Abstract

This paper considers the effects of PLASMA NITRIDING parameters including screen hole size, top lid type (screen or iron plate), temperature and composition of the treatment gas, on the surface properties of DIN 1.6580 low-alloy steel. Nitriding was carried out at 520, 550 and 580°C for 5 hr in the gas mixture of (N2/H2); 3:1 and 1:3. The properties of nitrided specimens were assessed using metallographic techniques, XRD, Micro-hardness measurements, and SEM. X-ray diffraction analysis confirmed the formation of g’-Fe4N and e-Fe2-3N during the nitriding process. The findings show that the thickness of the compound layer increases with the increase in the treatment temperature and nitrogen percentage in the gas mixture moreover increase in the screen hole size has no effect on the compound layer thickness in the screen top lid condition but that an increase in the screen hole size at the same temperature results in an increase in the thickness of the compound layer in the iron plate top lid condition. The results of micro-hardness measurements indicate that surface hardness increases with the increase in the temperature and nitrogen volume in the treatment gas. It was also found that hardness values obtained using screen top lid is relatively greater than those obtained using iron plate top lid.

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References

COMPARISON OF THE EFFECTS OF VARIOUS PARAMETERS OF ACTIVE SCREEN AND CONVENTIONAL PLASMA NITRIDING ON CORROSION BEHAVIOR OF LOW ALLOY STEEL

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APA: Copy

TAHERKHANI, F., & MAHBOUBI, F.. (2010). SURFACE CHARACTERIZATION OF ACTIVE SCREEN PLASMA NITRIDE LOW ALLOY STEEL (DIN 1.6580). IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, -(8), 1-12. SID. https://sid.ir/paper/121013/en

Vancouver: Copy

TAHERKHANI F., MAHBOUBI F.. SURFACE CHARACTERIZATION OF ACTIVE SCREEN PLASMA NITRIDE LOW ALLOY STEEL (DIN 1.6580). IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2010;-(8):1-12. Available from: https://sid.ir/paper/121013/en

IEEE: Copy

F. TAHERKHANI, and F. MAHBOUBI, “SURFACE CHARACTERIZATION OF ACTIVE SCREEN PLASMA NITRIDE LOW ALLOY STEEL (DIN 1.6580),” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. -, no. 8, pp. 1–12, 2010, [Online]. Available: https://sid.ir/paper/121013/en

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