Assessment of creep damage in weldments of 1cr-0. 5mo pressure vessel steels operating at 480-540 degree c - awra document no. p1-16-86 progress report on contract no. 113

B. C. Muddle, Y. J. Lee

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Abstract

Low alloy Cr-Mo steels are extensively used in power generation equipment and while exposed to high temperatures undergo creep and various time dependent changes which lead eventually to cracking and failure. In this work accelerated ageing treatments are used in an attempt to obtain microstructures similar to those resulting from long term service. The microstructural changes are explained. Also analysis of alloy carbides is shown to have potential as a guide to the thermal history of the alloy and thus for estimating residual creep life.

Original languageEnglish
Pages (from-to)76-93
Number of pages18
JournalAustralian Welding Research
Volume15
Publication statusPublished - 1 Dec 1986

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