Effect of welding process on fatigue crack growth behaviour of ASTM 517 ‘F’ grade steel weld metals

Abstract

The fatigue crack growth behaviours of two weld metals deposited by shielded metal arc welding (SMAW) and flux cored arc welding (FCAW) processes have been compared. Load carrying cruciform joints, with a lack of penetration (LOP) defect, were fabricated from high strength, quenched and tempered steel of ASTM 517 ‘F’ grade. Fatigue crack growth experiments were carried out in a vertical pulsator (Schenck 200 kN capacity) with a frequency of 30 Hz under constant amplitude loading (stress ratio R = 0). It was found that the fatigue crack growth resistance of the weld metal deposited by the SMAW process is superior, compared to the weld metal deposited by the FCAW process. The high heat input involved in the FCAW process probably contributes to the changes in weld metal properties, which result in a change in fatigue crack growth behaviour.

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References

Padmanaban

, Veeraragavan

, and Babu

R. S.

: Proc. Conf. NWS 97, Bangalore, India, December 1997, Indian Institute of Welding, Paper 25.

Lawrence

F. V.

and Radziminski

J. B.

: Weld. J., 1970, (10), 445s–452s.

Vosikovsky

: Weld. J., 1980, (9), 255s–258s.

Blodgett

O. W.

: Weld. J., 1992, (7), 39–44.

Maddox

S. J.

: Weld. J., 1974, (10), 401s–409s.

Gurney

T. R.

: Weld. Res. Int., 1979, 9, 45–52.

Otegui

J. L.

, Burns

D. L.

, Kerr

H. W.

, and Mohaupt

U. H.

: Int. J. Pressure Vessels Piping, 1991, 48, 129–165.

Overbeeke

J. L.

, Alting

T. J.

, and Jonkers

P. A. M.

: ‘Influence of weld parameters on the fatigue strength under CA and VA loading of welded joints in HSLA steels’, Document XIII–1404–91, IIW, Eindhoven, 1991.

Smith

I. F. C.

and Smith

R. A.

: Eng. Fract. Mech., 1983, 18, 861–869.

10.

Testin

R. A.

, Yung

J. Y.

, Lawrence

F. V.

Jr , and Rice

R. C.

: Weld. J., 1987, (4), 93s–98s.

11.

Otegui

J. L.

, Mohaupt

U. H.

, and Burns

D. J.

: Int. J. Fatigue, 1991, 13, 45–58.

12.

Frank

K. H.

and Fisher

J. W.

: J. Struct. Division, 1979, 105, 1727–1739.

13.

Usami

and Kusumoto

: Trans. Jpn Weld. Soc., 1978, 9, 1–10.

14.

Jack

A. R.

and Price

A. T.

: Met. Constr. Br. Weld. J., 1971, 3, 416–419.

15.

Guha

: ‘Some studies on fatigue strength of welded joints’, PhD thesis, Indian Institute of Technology, Madras, India, 1988.

16.

Guha

: Eng. Fract. Mech., 1995, 52, 215–229.

17.

Balasubramanian

and Guha

: Int. J. Pressure Vessel Piping, 1998, 10, 765–772.

18.

Nadkarni

S. V.

: ‘Modern arc welding technology’, 2nd edn, 651–652; 1996, New Delhi, Oxford and India Book House.

19.

Paris

P. C.

and Erdogan

: J. Basic Eng., 1963, 85, 528–538.

20.

Farrar

R. A.

and Harrison

P. L.

: J. Mater. Sci., 1987, 22, 239–244.

21.

Levine

and Hill

D. C.

: Met. Constr., 1977, 9, 346–353.

22.

Tweed

J. H.

and Knott

J. H.

: J. Mater. Sci., 1983, 17, 45–54.

23.

Evans

G. M.

: Weld. J., 1982, (4), 125s–132s.

24.

Vercesi

and Surian

: Weld. J., 1996, (6), 191s–196s.

25.

Dixon

and Hakansson

: Weld. J., 1995, (4), 122s–132s.

26.

Dolby

R. E.

: Weld. J., 1979, (8), 225s–238s.

27.

Hoekstra

, Munning

M. A.

Schmidt-van der burg and G. D. Ouden Met. Constr., 1986, 18, 771–775.