Effects of pretest aging on creep crack growth properties of type 308 austenitic stainless steel weld metals

Authors
Konosu, S Mashiba, H Takeshima, M Ohtsuka, T
Citation
S. Konosu et al., Effects of pretest aging on creep crack growth properties of type 308 austenitic stainless steel weld metals, ENG FAIL AN, 8(1), 2001, pp. 75-85
Citations number
22
Categorie Soggetti
Mechanical Engineering
Journal title
ENGINEERING FAILURE ANALYSIS
ISSN journal
13506307 → ACNP
Volume
8
Issue
1
Year of publication
2001
Pages
75 - 85
Database
ISI
SICI code
1350-6307(200102)8:1<75:EOPAOC>2.0.ZU;2-C
Abstract
Type 308 austenitic stainless steel weld metals made by SMAW and FCAW were used in order to quantitatively determine the effects of bismuth segregatio n and sigma phase precipitation as a result of high temperature pretest agi ng on creep crack growth properties. Tests were conducted using CT-type spe cimens and the data derived were arranged according to the parameter C*. Th e creep crack growth rate is significantly higher in cases where the metal contains a large amount of bismuth and where sigma phases have adequately p recipitated. (C) 2000 Elsevier Science Ltd. All rights reserved.