METALLURGICAL ASPECTS AND CLOSURE MAPS OF FATIGUE-CRACK GROWTH OF ALLOY-STEELS .2. EFFECT OF SURFACE-TREATMENT ON CRACK CLOSURE

Authors
SAXENA VK BHARATI A MALAKONDAIAH G MOIUDDIN N RADHAKRISHNAN VM
Citation
Vk. Saxena et al., METALLURGICAL ASPECTS AND CLOSURE MAPS OF FATIGUE-CRACK GROWTH OF ALLOY-STEELS .2. EFFECT OF SURFACE-TREATMENT ON CRACK CLOSURE, Transactions of the Indian Institute of Metals, 49(1-2), 1996, pp. 55-66
Citations number
12
Journal title
Transactions of the Indian Institute of Metals
ISSN journal
09722815 → ACNP
Volume
49
Issue
1-2
Year of publication
1996
Pages
55 - 66
Database
ISI
SICI code
0972-2815(1996)49:1-2<55:MAACMO>2.0.ZU;2-T
Abstract
Surface treatment by laser and electron beam irradiation results in si gnificant improvement in fatigue crack growth resistance of alloy stee ls and Armco iron. The beneficial effect is due to extensive crack clo sure as a result of compressive residual stresses introduced during su rface treatment. The crack growth is structure sensitive at low Delta K levels.