Issue 46

T. Bounini et alii, Frattura ed Integrità Strutturale, 46 (2018) 1-13; DOI: 10.3221/IGF-ESIS.46.01

Density (Kg/m 3 )

2660

Thermal conductivity( w/m.K)

110 -140

Thermal expansion coefficient K -1

24.2 10 -6

Specific heat (J/Kg°C)

900

Table 5: Plates material other mechanical and thermal characteristics.

Speed of rotation ω [rpm]

710

1000

1400

2000

40 80

40 80

40 80

40 80

100 200 400

100 200 400

100 200 400

100 200 400

Welding speed V [mm/min]

Table 6: Welding parameter (speed of rotation - welding speed).

(a)

(b)

as a function of the rotational speed . b) Variation of the elastic limit R e

as a function of the

Figure 6: a) Variation of the elastic limit R e

welding speed.

6