Journal ArticleDOI
Microstructural stability and creep rupture strength of the martensitic steel P92 for advanced power plant
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In this paper, Japanese 9% Cr steel containing 0.5% Mo and 1.8% W (P92) has been investigated using TEM of thin foils and extraction double replicas.About:
This article is published in Acta Materialia.The article was published on 1997-12-01. It has received 341 citations till now. The article focuses on the topics: Creep & Alloy steel.read more
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Recent Advances in Creep Resistant Steels for Power Plant Applications
TL;DR: In this paper, it is shown that the martensitic transformation in these three steels produces high dislocation density that confers significant transient hardening, however, the dislocations density decreases during exposure at service temperatures due to recovery effects and for longterm creep strength the sub-grain structure produced under different conditions is most important.
Journal ArticleDOI
On the effect of long-term creep on the microstructure of a 12% chromium tempered martensite ferritic steel
TL;DR: In this article, the evolution of the microstructure of a 12% Cr tempered martensite ferritic steel under conditions of long-term aging and creep (823 K, 120 MPa, t R ǫ =139, 971 H) was investigated, showing how subgrains coarsen, that the close correlation between carbides and subgrain boundaries loosens during longterm creep and that the frequency of smallangle boundaries increases.
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Effect of carbon concentration on precipitation behavior of M23C6 carbides and MX carbonitrides in martensitic 9Cr steel during heat treatment
TL;DR: The distribution and precipitated amounts of M23C6 carbides and MX-type carbonitrides with decreasing carbon content from 0.16 to 0.002 mass pct in 9Cr-3W steel, which is used as a heat-resistant steel, has been investigated in this article.
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Evolution of dislocation density, size of subgrains and MX-type precipitates in a P91 steel during creep and during thermal ageing at 600 °C for more than 100,000 h
Clara Panait,Clara Panait,Anna Zielińska-Lipiec,Tomasz Kozieł,Aleksandra Czyrska-Filemonowicz,Anne-Françoise Gourgues-Lorenzon,Walter Bendick +6 more
TL;DR: In this article, the authors present results of the quantitative measurement of the size of MX precipitates, subgrain size and dislocation density in a P91 steel that had been creep tested for 113,431 h at 600 ◦ C.
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Relationship between pack chemistry and aluminide coating formation for low-temperature aluminisation of alloy steels
Z.D. Xiang,Z.D. Xiang,P.K. Datta +2 more
TL;DR: In this paper, a theoretical analysis is provided to relate the coating layer growth kinetics to the pack chemical composition and processing conditions under a set of defined thermodynamic and kinetic conditions for aluminising alloy steels at temperatures below 700°C in an effort to increase their high-temperature oxidation resistance whilst maintaining their microstructure.
References
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The determination of dislocation densities in thin films
TL;DR: In this paper, the determination of dislocation densities in thin films was studied and it was shown that the densities of thin films can be determined by a simple linear model.
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Towards the standardization of time-temperature parameter usage in elevated temperature data analysis
TL;DR: A Task Group of the Joint Committee on Effect of Temperature on the Properties of Metals (JCE) as mentioned in this paper did an extensive study of methods for the extrapolation of short-time rupture data in an effort to decide if any one method might serve as a basis for a standard practice.