Effect of flowing sodium on corrosion and tensile properties of AISI type 316LN stainless steel at 823K

Autor:	A.K. Balamurugan, K. K. Rajan, H. S. Khatak, N. Sivai Bharasi, H. Shaikh, R. K. Dayal, K. Thyagarajan, S. Kalavathy, Santanu Bera, K. Gurumurthy, A.K. Tyagi
Rok vydání:	2008
Předmět:	Nuclear and High Energy Physics Materials science Precipitation (chemistry) Sodium Metallurgy chemistry.chemical_element Corrosion Carbide Nuclear Energy and Engineering chemistry Ultimate tensile strength General Materials Science Grain boundary Ductility Layer (electronics)
Zdroj:	Journal of Nuclear Materials. 377:378-384
ISSN:	0022-3115
DOI:	10.1016/j.jnucmat.2008.01.032
Popis:	AISI type 316LN stainless steel was exposed to flowing sodium in mass transfer loop (MTL) at 823 K for 16 000 h and then examined for changes in the tensile properties due to the mass transfer and corrosion effects. Comparisons in microstructural and mechanical properties were made between annealed, thermally aged and sodium exposed materials. Microstructural examination of thermally aged and sodium exposed materials revealed precipitation of carbides at the grain boundaries. The sodium exposed samples contained a degraded layer at the surface up to a depth of around 10 μm and a surface carburized layer of about 30 μm. There was about 15% increase in yield strength and a decrease of about 20% in ductility for the sodium exposed material vis-a-vis thermally aged material and this was attributed to carburization effects and microstructural changes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ec6c35bfe772818022fe527479d87f0 https://doi.org/10.1016/j.jnucmat.2008.01.032 Zobrazit plný text záznamu Full Text from ScienceDirect