Table 1 shows FSW simulations matrix on stainless steel with numbers identifying the weld parameters. (W 35) (1)

Stainless steel = Aço inoxidável

…In tests extending to more than 104 h, the cross-weld strength fell more than 20% below that of the parent steel. (W 22) (2)

Parent steel = Aço de origem

The (CRA) layer, typically a few millimetres thick, has different ultrasonic properties from the carbon steel.(W 67) (3)

Carbon steel = Aço carbono

(1) Numerical investigations of friction stir welding of high temperature materials.

A. Elbanhawy, E. Chevallier, K. Domin 

TWI Ltd, Structural Integrity Technology Group  

Presenter: Dr Amr Elbanhawy, Project Leader at TWI Ltd, Granta Park, Cambridge, CB21 6AL, UK 

NAFEMS world congress, Salzburg, Austria, 9-12 June 2013.

(2) Review of type IV cracking of weldments in 9– 12%Cr creep strength enhanced ferritic steels.

D.J. Abson and J. S. Rothwell* 

TWI Ltd

International Materials Reviews, November 2013, 58(8), 437-473.

(3) New approaches to assuring the integrity of pipelines and risers

Geoff Booth, Henryk Pisarski, Channa Nageswaran and Peter Mudge 

Joining, Cutting and Surfacing Technology, Chennai, 17-22 TWI Ltd Cambridge, UK

Paper presented at IIW International Conference on Global Trends 2011 in July.