SYMPOSIA PAPER
Published:
01 January 1979
STP38348S
Effect of Heat-to-heat and Melt Practice Variations upon Fatigue Crack Growth in Two Austenitic Steels
SourceLinear-elastic fracture mechanics techniques were employed to characterize the fatigue-crack growth behavior of five heats of annealed Type 304 (including one heat of Type 304L) and three heats of annealed Type 316 (including one heat of Type 316H) stainless steels at 538°C (1000°F). Specimens were tested under conditions of continuous cycling at 40 cpm, or under tensile hold-time (10.8 min) conditions, producing transgranular or intergranular cracking, respectively. In general, no heat-to-heat variations were noted in the crack growth behavior of either alloy or under the different cycling conditions. Also, the three heats of Type 316 represented three different melt practices, and again there was no apparent effect due to melt practice.
Author Information
James, LA
Westinghouse Hanford Co., Richland, Wash.
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Details
Developed by Committee: A01
Pages: 3–15
DOI: 10.1520/STP38348S
ISBN-EB: 978-0-8031-5550-3
ISBN-13: 978-0-8031-0537-9