Singh, Raghubir (1995) Remaining life assessment of high-temperature components using threshold stress concept. Sadhana-academy proceedings in engineering sciences, 20 ( ). pp. 87-101.
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The paper first presents global experience, including that of our laboratory, mainly with power plant components to show that it is possible to extend the life of some critical components 2-3 fold over the design life. Different approaches for remaining life assessment are also briefly discussed. It appears that the main creep damage in so far as Cr-Mo and Cr-Mo-V steels are concerned, is an accumulation of creep strain. Hence, this paper suggests a new approach for creep life prediction based on threshold stress concept and stress-strain rate relationship. The approach is based on the analysis of creep and hot tensile data generated on a popular 1 Cr-0.3 Mo-0.25 V steel in the service exposed and the. virgin states and also on samples with a wide range of microstructures prepared from the virgin states. A summary of the main finding leading to development of a new approach has been given.
|Uncontrolled Keywords:||Creep Resistant Steels|
|Divisions:||Corrosion and Surface Engineering|
|Deposited By:||Sahu A K|
|Deposited On:||15 Jun 2010 12:13|
|Last Modified:||09 Feb 2012 12:48|
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