Issue 30

A. Carofalo et alii, Frattura ed Integrità Strutturale, 30 (2014) 349-359; DOI: 10.3221/IGF-ESIS.30.42

(a)

(b) Figure 1: Specimen geometry for LCF test (a) and creep test (b) .

(a) (b) Figure 2: Static behaviour of base (a) and TIG welded (b) material.

Yielding Stress

Tensile Strength

Elongation to Failure

Young Modulus

[N/mm 2 ]

[N/mm 2 ]

E [N/mm 2 ]

σ y

σ R

A [%]

Base Material

Base Material

TIG var %

TIG

TIG

TIG

var % Base Material

var % Base Material

var % -5.22 -10.83

RT

0.617 0.519 0.516 0.444

0.622 0.78

1

0.968 -3.24 0.836 -3.58

0.65 0.47 0.93

0.43 0.34

-33.64

1

0.948 0.658

503°C 704°C 760°C

0.484

-6.7

0.867 0.607 0.497

-28.18 0.738

-

-

-

-

-

-

0.571

-

-

0.446 0.53

0.514

3.39

1

0.25

-75.00 0.522

0.560

7.27

Table 1: Static behaviour of base and TIG welded material.

352