Homogenization of Cr-Ni Austenitic Steel Studying: Liquation and Microhardness Heterogeneity Equalization

Anton Sergeevich Tsvetkov; Irina Vladimirovna Teplukhina

doi:10.4028/www.scientific.net/KEM.822.53

Paper Titles

Filtration Permeability of Dendritic Structure in Condition of Diffusion-Capillary Coalescence of Secondary Side Branches
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Phosphorus Removal Options at Induction Melting of Steel
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Modification of Nitrogen-Containing High-Chromium Steels by Nanosized Lanthanum Hexaboride
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Formulas for the Calculation of Temperatures and Concentrations of Carbon Responsible to the Parar Equilibrium of the Main Phases in Medium Sheet Steels
p.44

Homogenization of Cr-Ni Austenitic Steel Studying: Liquation and Microhardness Heterogeneity Equalization
p.53

Cast Austenitic Steels for Cryogenic Technology
p.60

Numerical Simulation of Hot High Strain Rate Torsion Tests for Al-Based Alloys
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General Experimental Method of Research of Anisotropy of Conductive Materials
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Effect of Microstructure and Impact Toughness, on the Character of the Destruction of Main Oil and Gas Pipelines
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 822Homogenization of Cr-Ni Austenitic Steel Studying:...

Homogenization of Cr-Ni Austenitic Steel Studying: Liquation and Microhardness Heterogeneity Equalization

Abstract:

Currently, a new generation of pressurized water reactor for nuclear power plants with an extended service life (up to 60 years) and a guarantee of their complete safety are being designed in Russia. Analysis of the reactor internal elements performance showed, that designed service life cannot be guaranteed if the reactor’s internal parts would be made from currently used stainless steel (18-10 alloy type). Instead of the used steel, to ensure operability, new austenitic stainless steel (16-25 alloy type), with increased resistance to radiation swelling, is being developed for production of forged ring blanks for core baffle. The use of new steel requires revision of the existing metallurgical production technology stages. Therefore in this paper diffusion experiment was carried out to determine the required duration of homogenization. The results are presented in terms of different duration of the high-temperature exposure effect on the liquation heterogeneity equalization. The relation between duration of homogenization and microhardness is also shown.

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Periodical:

Key Engineering Materials (Volume 822)

Pages:

53-59

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.822.53

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Online since:

September 2019

Authors:

Anton Sergeevich Tsvetkov*, Irina Vladimirovna Teplukhina

Keywords:

Homogenization, Liquation, Microhardness, Reactor, Stainless Steel, Thermal Processing

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