Pulsed laser welding of Inco 718

McCay, Mary Helen; McCay, T. D.; Dahotre, Narendra B.; Sharp, Christopher; Sedghinasab, A.; Gopinathan, S.

doi:10.2351/1.5058322

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…[7][8][9][10] A review of the research carried out to the present time indicates that results obtained from welding of aluminium-matrix composites reinforced with discontinuous particles depend upon the matrix composition and the filler materials. [11][12][13][14][15][16][17] Additionally, the joint quality is associated with the presence of pores, insufficient cleaning or low flow of protecting gas. 18 The research has been carried out on matrix materials of 6xxx series because of its weldability and the possibility of subsequent heat treatment of the weld.…”

Section: Introductionmentioning

confidence: 99%

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Salazar¹,

Soria²,

Barrena³

2005

Science and Technology of Welding and Joining

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Metal–matrix composites reinforced with Al2O3 particles combine the properties of the matrix (ductility and toughness) with the ceramic properties of the reinforcements (high strength). However, their wide application as structural materials requires a proper development of their joint process. The present work describes the results obtained from microstructural (optical and scanning electron microscopy) and mechanical evaluation (hardness and tensile tests) of the welded aluminium–matrix composite (AA6061) reinforced with 10% and 20% volume fraction Al2O3 particles (W6A10 and W6A20, respectively) using the MIG (metal inert gas) welding process and ER5356 (AlMg5) as filler material. A characteristic of the welds carried out in composites is that the size of the melt pool is wider than in the unreinforced materials, for the same welding conditions. This is caused by the lower thermal conductivity of the composites. Furthermore, composites act as an insulator reducing the cooling rate of the bath. The thermal effect of welding on different types of joints results in a loss of the mechanical properties in the heat affected zones (HAZ). These properties can be recovered with post-welding heat treatment.

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Section: Introductionmentioning

confidence: 99%

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Salazar¹,

Soria²,

Barrena³

2005

Science and Technology of Welding and Joining

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show abstract

Pulse duty cycle effects on CO2 laser radiation coupling with a reflective alloy

McCay¹,

McCay²,

Sharp³

1992

International Congress on Applications of Lasers &Amp; Electro-Optics

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Transient predictions of CO2 spot welds in inconel 718

Hopkins¹,

McCay²,

McCay³

et al. 1993

International Congress on Applications of Lasers &Amp; Electro-Optics

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Pulsed laser welding of Inco 718

Cited by 3 publications

References 2 publications

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Pulse duty cycle effects on CO2 laser radiation coupling with a reflective alloy

Transient predictions of CO2 spot welds in inconel 718

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Pulsed laser welding of Inco 718

Cited by 3 publications

References 2 publications

Welding of AA6061-(Al2O3)p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Welding of AA6061-(Al2O3)p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Pulse duty cycle effects on CO2 laser radiation coupling with a reflective alloy

Transient predictions of CO2 spot welds in inconel 718

Contact Info

Product

Resources

About

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties

Welding of AA6061-(Al₂O₃)_p composite: Effect of weld process variables and post-welding heat treatment on microstructure and mechanical properties