The morphology of the interface is central to the susceptibility of the fusion zone, to hydrogen-assisted cracking. (W 18) (1)

Hydrogen-assisted cracking = Rachamento assistido por hidrogênio

Welding thick walled components generates residual stresses which can be the cause of brittle fracture or corrosion cracking. (W 32) (2)

Corrosion cracking = Rachadura por corrosão

A drawback to processing at very high speeds with hybrid Nd:YAG laser/MAG processes is the propensity of the laser process to solidification cracking when welding structural steel grades. (W 355) (3)

Solidification cracking = Fissura / trinca por solidificação

(1) Fusion Zone Microstructure Associated With Embrittlement Of Subsea Dissimilar Joints.

M. F. Dodge, H. B. Dong 

Department of Engineering, University of Leicester, Leicester, UK.

M. F. Gittos, T. Mobberley 

TWI Ltd. Great Abington, Cambridge, UK

Presented at Proceedings of the 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 June 8-13, 2014, San Francisco, CA, USA.

(2) Finite Element Prediction of the Residual Stresses in a Branch-Pipe Connection after Local Post-Weld Heat-Treatment

Philippe Bastid 

TWI Ltd, Granta Park, Great Abington, Cambridge CB21 6AL, UK

NAFEMS conference. July 2013.

(3) Welding of Structural Steel Components with High Power, Fibre Delivered Nd:YAG Lasers

D S Howse and C H J Gerritsen

Paper presented at 2nd International Conference on Recent Developments and Future Trends in Welding Technology, Cranfield University, UK, 3-5 September 2003.