Thermovision tests of low-alloy steel hardfacing thermal cycle of heat-resistant superalloys with nickel matrix

Nowacki, J.; Wypych, Artur

doi:10.1080/09507111003655226

Cited by 1 publication

(1 citation statement)

References 2 publications

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“…3 More recently, IR cameras were used in non-destructive testing in polyethylene weld joints, 4 steel weld joints 5 and steel resistance spot weld. 6 Infrared cameras for real time monitoring of temperature in welding processes were used in laser welding of polymer, 7, 8 laser and hybrid welding of aluminium 9 and magnesium, 10 laser brazing of steel/aluminium assembly, 11 friction stir welding of aluminium, 12 pad welding of Inconel and CrMo steel 13 and arc and laser welding of steel 14 or arc welding of magnesium alloy. 15 None of these studies describe a fully integrated method to achieve real temperature measurement without using thermocouples at the same time.…”

Section: Introductionmentioning

confidence: 99%

Quantitative infrared analysis of welding processes: temperature measurement during RSW and CMT-MIG welding

Frappier

Benoit

Paillard

et al. 2014

Science and Technology of Welding and Joining

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This article deals with temperature characterisation by infrared thermography during welding. To demonstrate the versatility of this technique, two welding processes were investigated with different materials: cold metal transfer metal inert gas welding of al alloy and resistance spot welding of galvanised steel. Two experimental methods were used to characterise temperature without requiring implementation of thermocouples. The validity of these methods is demonstrated by metallurgical characterisations. The error on the measured values of temperature is assessed regarding the initial uncertainty on the apparent surface emissivity. The results show that it is possible to obtain absolute temperature values, cooling rates and informative visualisation of temperature gradients with a reasonable uncertainty.

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