|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Materials for Transportation and Lightweighting
||Study of the discontinuities generated by GMAW process applied in AISI 1018 steel using NDT phased array and their microstructural correlation.
||Luis Aguilar-Pérez, Gladys Pérez-Medina, Argelia Fabiola Miranda-Pérez, Rolando Praga-Alejo
|On-Site Speaker (Planned)
Dependence and correlation between input variables (voltage, amperage and feed rate) and the final quality generated by the union through the GMAW welding process on steel components AISI 1018 with 15.8 mm of thickness, applied in freight transportation industry operations in its road mode, were analyzed in this study. The appearance of discontinuities and microstructural changes correlate to the input parameters through a design of experiments, whose output data were obtained by evaluating the weld, using: non-destructive testing; phased array, ultrasonic testing, visual inspection and penetration testing. Microstructural characterization by OM and SEM were carried out to evaluate the phase transformation and the mechanical properties were evaluated by microhardness testing. The maximum acceptance criteria component usually given by the design code applied often with additional requirements set by the customer, the acceptance criteria are discussed according to the new technologies due to codes currently employed in automotive industries.
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