V. Balasubramanian et B. Guha, Influences of welding processes on fatigue life of cruciform joints of pressure vessel grade steels containing LOP defects, MECH MATER, 32(5), 2000, pp. 265-276
The influences of two welding processes, namely, shielded metal are welding
(SMAW) and flux cored arc welding (FCAW), on fatigue life of cruciform joi
nts, containing lack of penetration (LOP) defects, have been studied. Load
carrying cruciform joints were fabricated from high strength, quenched and
tempered steels of pressure vessel (ASTM 517 'F') grade. Fatigue crack grow
th experiments were carried out in a mechanical resonance vertical pulsator
(SCHENCK 200 kN capacity) with a frequency of 30Hz under constant amplitud
e loading (R = 0). It was found that the fatigue lives of the cruciform joi
nts fabricated by the SMAW process were relatively higher than the FCAW cou
nterpart. (C) 2000 Elsevier Science Ltd. All rights reserved.