Predicting Chromium Depletion of Nickel Base Alloys

Autor:	Ian Armson, Youfa Yin, Feng Zhu, Ed Miller, Roy G. Faulkner, Paul Moreton, Bryan Borradaile
Rok vydání:	2012
Předmět:	Precipitation kinetics Materials science Metallurgy Monte Carlo method Alloy Nickel base chemistry.chemical_element engineering.material Carbide Matrix (geology) Chromium chemistry engineering Grain boundary
Zdroj:	Proceedings of the 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems — Water Reactors ISBN: 9783319487601 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors
DOI:	10.1002/9781118456835.ch32
Popis:	There are two so-called grain boundary chromium concentrations: the grain boundary chromium concentration at carbide free grain boundary sections and the interfacial chromium concentration at the interface between carbides and the matrix. Existing models for predicting grain boundary chromium depletion either predicts the former or the latter. A Monte Carlo based precipitation kinetics simulation approach has been developed to simulate the evolution of both the grain boundary and interfacial chromium concentration. Application of the method to Alloy 690 yields good agreement with experimental observations with regard to both the chromium depletion evolution and carbide precipitation kinetics. The effect of grain boundary character will also be discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99626257cc97b5e566923b1b47deb6d6 https://doi.org/10.1002/9781118456835.ch32 Zobrazit plný text záznamu