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

โœ Scribed by S Konosu; H Mashiba; M Takeshima; T Ohtsuka


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
503 KB
Volume
8
Category
Article
ISSN
1350-6307

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โœฆ Synopsis


Type 308 austenitic stainless steel weld metals made by SMAW and FCAW were used in order to quantitatively determine the eects of bismuth segregation and sigma phase precipitation as a result of high temperature pretest aging on creep crack growth properties. Tests were conducted using CT-type specimens and the data derived were arranged according to the parameter C รƒ . The creep crack growth rate is signiยฎcantly higher in cases where the metal contains a large amount of bismuth and where sigma phases have adequately precipitated.


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