INVESTIGATING THE EFFECT OF PULSED CURRENT GTAW PARAMETERS ON MICROSTRUCTURE OF HP HEAT-RESISTANT STEEL

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NAMJOU ALIREZA; DEHMOLAEI REZA; ASHRAFI ALI

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

Journal Paper

Paper Information

Journal: Journal of Advanced Processes in Materials Engineering Year:2013 | Volume:7 | Issue:3 (26) Page(s): 77-85

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Title

INVESTIGATING THE EFFECT OF PULSED CURRENT GTAW PARAMETERS ON MICROSTRUCTURE OF HP HEAT-RESISTANT STEEL

Author(s)

NAMJOU ALIREZA | DEHMOLAEI REZA | ASHRAFI ALI | Issue Writer Certificate

Keywords

HP HEAT-RESISTANT STEELQ3

PULSED CURRENT GAS TUNGSTEN ARC WELDINGQ3

UNMIXED ZONEQ3

ER-NICR3 FILLER METALQ3

Abstract

In this research, HP heat-resistant cast steel was welded by Inconel Weld Metal ER-NiCr3 using PULSED CURRENT GAS TUNGSTEN ARC WELDING (PCGTAW) and continuous current gas tungsten arc welding (CCGTAW) and the effect of these welding processes on the microstructure of the steel was studied and compared. In as-cast condition when continuous current gas tungsten arc welding was used, due to incomplete mechanical mixing, an UNMIXED ZONE was observed at interface of HP HEAT-RESISTANT STEEL and Inconel Weld Metal ER-NiCr3. This region was eliminated using PULSED CURRENT GAS TUNGSTEN ARC WELDING with peak current of 180 A, base current of 60 A, frequency of 10-12 Hz and percentage on time 40 and also grains of weld metal became finer.

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APA: Copy

NAMJOU, ALIREZA, DEHMOLAEI, REZA, & ASHRAFI, ALI. (2013). INVESTIGATING THE EFFECT OF PULSED CURRENT GTAW PARAMETERS ON MICROSTRUCTURE OF HP HEAT-RESISTANT STEEL. ADVANCED PROCESSES IN MATERIALS, 7(3 (26)), 77-85. SID. https://sid.ir/paper/172699/en

Vancouver: Copy

NAMJOU ALIREZA, DEHMOLAEI REZA, ASHRAFI ALI. INVESTIGATING THE EFFECT OF PULSED CURRENT GTAW PARAMETERS ON MICROSTRUCTURE OF HP HEAT-RESISTANT STEEL. ADVANCED PROCESSES IN MATERIALS[Internet]. 2013;7(3 (26)):77-85. Available from: https://sid.ir/paper/172699/en

IEEE: Copy

ALIREZA NAMJOU, REZA DEHMOLAEI, and ALI ASHRAFI, “INVESTIGATING THE EFFECT OF PULSED CURRENT GTAW PARAMETERS ON MICROSTRUCTURE OF HP HEAT-RESISTANT STEEL,” ADVANCED PROCESSES IN MATERIALS, vol. 7, no. 3 (26), pp. 77–85, 2013, [Online]. Available: https://sid.ir/paper/172699/en

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