The Microstructural Characterization of NiSi-Rich Sub-precipitates Within Cementite in Isothermally Aged Reactor Pressure Vessel Steel

Autor:	Qiulin Li, Rong Hu, Hailong Liu, Wu Xingping, Gang Sha, Guogang Shu, Ben Xu, Wei Liu
Rok vydání:	2019
Předmět:	Materials science Structural material Precipitation (chemistry) Cementite Metallurgy Metals and Alloys Condensed Matter Physics Isothermal process chemistry.chemical_compound chemistry Mechanics of Materials Hardening (metallurgy) Irradiation Reactor pressure vessel Embrittlement
Zdroj:	Metallurgical and Materials Transactions A. 50:3992-3999
ISSN:	1543-1940 1073-5623
DOI:	10.1007/s11661-019-05355-1
Popis:	Irradiation-induced solute-rich precipitates are harmful microstructural nanofeatures responsible for the irradiation embrittlement and hardening of reactor pressure vessel (RPV) steels. In this study, we found the formation of NiSi-rich sub-precipitates within the cementite of aged RPV steel. These sub-precipitates retained the same structure as the cementite. The segregation and precipitation of Si and Ni could reduce the energy of the cementite system and improve its stability. Moreover, these NiSi-rich sub-precipitates remain to be clusters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cbccc31b379f823e822ae295e3fb4fd1 https://doi.org/10.1007/s11661-019-05355-1 Zobrazit plný text záznamu Full text from SpringerLink