METALLURGICAL ASPECTS AND CLOSURE MAPS OF FATIGUE-CRACK GROWTH OF ALLOY-STEELS .1. EFFECT OF 2ND-PHASE ON CRACK CLOSURE

Authors
SAXENA VK MALAKONDAIAH G RADHAKRISHNAN VM
Citation
Vk. Saxena et al., METALLURGICAL ASPECTS AND CLOSURE MAPS OF FATIGUE-CRACK GROWTH OF ALLOY-STEELS .1. EFFECT OF 2ND-PHASE ON CRACK CLOSURE, Transactions of the Indian Institute of Metals, 49(1-2), 1996, pp. 47-53
Citations number
16
Journal title
Transactions of the Indian Institute of Metals
ISSN journal
09722815 → ACNP
Volume
49
Issue
1-2
Year of publication
1996
Pages
47 - 53
Database
ISI
SICI code
0972-2815(1996)49:1-2<47:MAACMO>2.0.ZU;2-U
Abstract
The role of second phase in AISI 4330 steel on the fatigue crack closu re has been investigated. The mixed microstructure of upper bainite-ma rtensite shows a better fatigue crack growth (FCG) resistance in the n ear threshold region than the fully martensite structure steel due to increase in roughness induced closure stress.