AN INVESTIGATION INTO THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TI-3 AL -2.5V UNDER MICRO-PLASM ARC WELDING

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JAVIDRAD F.; FARGHADANI H.; HAYDARI MOHAMMAD; MASHAYEKHY M.

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Journal: Modares Mechanical Engineering Year:2014 | Volume:13 | Issue:14 Page(s): 199-209

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Title

AN INVESTIGATION INTO THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TI-3 AL -2.5V UNDER MICRO-PLASM ARC WELDING

Author(s)

JAVIDRAD F. | FARGHADANI H. | HAYDARI MOHAMMAD | MASHAYEKHY M. | Issue Writer Certificate

Keywords

TI-3AL-2.5V TITANIUM ALLOYQ2

MICRO-PLASMA ARC WELDINGQ2

MICROSTRUCTUREQ1

FRACTURE SURFACE MORPHOLOGYQ2

METALLOGRAPHQ1

Abstract

In this paper, the process of joining TI-3AL-2.5V TITANIUM ALLOY thin sheets by means of MICRO-PLASMA ARC WELDING (MPAW) is reported. The specimens were welded under controlled welding parameters, such as voltage, current, travel speed and shielding gas flow rate. An appropriate set of parameters for MPAW process was examined by mechanical properties tests and MICROSTRUCTURE characterization. Mechanical tests including tensile test, bending test and micro- hardness evaluation across the weld line generally show that if suitable welding parameters are used, the tensile strength of the welded specimen is well comparable with that of the base metal, while its hardness increased at the fusion zone (FZ). Fractography, X-ray diffraction and metallograpghy were also performed to study the MICROSTRUCTURE evolution. SEM images of the fracture surface presented characteristics of ductile rupture. Studies on MICROSTRUCTURE morphology of the specimens at the FZ and HAZ reveal occurrence of phase transformation from high temperature b phase to acicular a′ phase.

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APA: Copy

JAVIDRAD, F., FARGHADANI, H., HAYDARI, MOHAMMAD, & MASHAYEKHY, M.. (2014). AN INVESTIGATION INTO THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TI-3 AL -2.5V UNDER MICRO-PLASM ARC WELDING. MODARES MECHANICAL ENGINEERING, 13(14), 199-209. SID. https://sid.ir/paper/178703/en

Vancouver: Copy

JAVIDRAD F., FARGHADANI H., HAYDARI MOHAMMAD, MASHAYEKHY M.. AN INVESTIGATION INTO THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TI-3 AL -2.5V UNDER MICRO-PLASM ARC WELDING. MODARES MECHANICAL ENGINEERING[Internet]. 2014;13(14):199-209. Available from: https://sid.ir/paper/178703/en

IEEE: Copy

F. JAVIDRAD, H. FARGHADANI, MOHAMMAD HAYDARI, and M. MASHAYEKHY, “AN INVESTIGATION INTO THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TI-3 AL -2.5V UNDER MICRO-PLASM ARC WELDING,” MODARES MECHANICAL ENGINEERING, vol. 13, no. 14, pp. 199–209, 2014, [Online]. Available: https://sid.ir/paper/178703/en

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