EFFECT OF PULSE CURRENT ON MECHANICAL, METALLURGICAL AND CORROSION PROPERTIES OF AA 5083 ALUMINUM ALLOY PULSE TIG WELDED JOINTS

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NAZARPOOR VAHID; SOLTANIPOOR ABDOREZA; FARMANESH KHOSROW

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Journal: Journal of Advanced Materials and Processing Year:2010 | Volume:2 | Issue:1 Page(s): 54-67

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Title

EFFECT OF PULSE CURRENT ON MECHANICAL, METALLURGICAL AND CORROSION PROPERTIES OF AA 5083 ALUMINUM ALLOY PULSE TIG WELDED JOINTS

Author(s)

NAZARPOOR VAHID | SOLTANIPOOR ABDOREZA | FARMANESH KHOSROW | Issue Writer Certificate

Keywords

PULSED TIG WELDINGQ3

ALUMINUM ALLOYQ2

PULSE CURRENTQ2

TENSILE STRENGTHQ2

HARDNESSQ2

MICROSTRUCTUREQ2

Abstract

Aluminum alloys are largely used because of their inherent good properties. Nowadays, 5xxx series alloys are developed and one of their new categories is Al-4.5Mg. High strength in this alloy is due to work hardening. It has ultimate TENSILE STRENGTH of 330 MPa. The most important challenge during fusion welding of this alloy is HAZ softening. The aim of the present investigation is to study the effect of PULSE CURRENT on mechanical and metallurgical properties of AA5083 ALUMINUM ALLOY welds through pulsed tungsten inert gas (TIG) welding process. MICROSTRUCTUREs of all the welds were studied and correlated with the mechanical properties. It was seemed that PULSE CURRENT, has an optimum amount to reach the highest strength. All the welded specimens were failed within the weld region. Pulsed welds showed fine grain structure due to thermal disturbances and decrease in heat input. In general, HARDNESS is lower in HAZ region compared to the weld metal and base metal regions, irrespective of welding technique, which is characterized by the coarse dendrite grains and lack of the strengthener phase. HARDNESS was higher compared to the continuous welds and this could be due to refinement of grain structure. The best peak current should be selected between 220 & 240 A.

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APA: Copy

NAZARPOOR, VAHID, SOLTANIPOOR, ABDOREZA, & FARMANESH, KHOSROW. (2010). EFFECT OF PULSE CURRENT ON MECHANICAL, METALLURGICAL AND CORROSION PROPERTIES OF AA 5083 ALUMINUM ALLOY PULSE TIG WELDED JOINTS. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), 2(1), 54-67. SID. https://sid.ir/paper/186528/en

Vancouver: Copy

NAZARPOOR VAHID, SOLTANIPOOR ABDOREZA, FARMANESH KHOSROW. EFFECT OF PULSE CURRENT ON MECHANICAL, METALLURGICAL AND CORROSION PROPERTIES OF AA 5083 ALUMINUM ALLOY PULSE TIG WELDED JOINTS. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE)[Internet]. 2010;2(1):54-67. Available from: https://sid.ir/paper/186528/en

IEEE: Copy

VAHID NAZARPOOR, ABDOREZA SOLTANIPOOR, and KHOSROW FARMANESH, “EFFECT OF PULSE CURRENT ON MECHANICAL, METALLURGICAL AND CORROSION PROPERTIES OF AA 5083 ALUMINUM ALLOY PULSE TIG WELDED JOINTS,” JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), vol. 2, no. 1, pp. 54–67, 2010, [Online]. Available: https://sid.ir/paper/186528/en

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