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Title: Predicting Polymer Degradation and Mechanical Property Changes for Combined Aging Environments.

Abstract

Abstract not provided.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1401914
Report Number(s):
SAND2016-10363C
648311
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the ACS 190th Technical Meeting of Rubber Division, ACS held October 10-13, 2016 in Pittsburgh.
Country of Publication:
United States
Language:
English

Citation Formats

Celina, Mathias C, and Kenneth T. Gillen. Predicting Polymer Degradation and Mechanical Property Changes for Combined Aging Environments.. United States: N. p., 2016. Web.
Celina, Mathias C, & Kenneth T. Gillen. Predicting Polymer Degradation and Mechanical Property Changes for Combined Aging Environments.. United States.
Celina, Mathias C, and Kenneth T. Gillen. 2016. "Predicting Polymer Degradation and Mechanical Property Changes for Combined Aging Environments.". United States. doi:. https://www.osti.gov/servlets/purl/1401914.
@article{osti_1401914,
title = {Predicting Polymer Degradation and Mechanical Property Changes for Combined Aging Environments.},
author = {Celina, Mathias C and Kenneth T. Gillen},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =
}

Conference:
Other availability
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  • Abstract not provided.
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  • Mechanical testing and microstructural characterization were performed on short-term thermally aged cast austenitic stainless steels (CASS) to understand the severity and mechanisms of thermal-aging degradation experienced during extended operation of light water reactor (LWR) coolant systems. Four CASS materials – CF3, CF3M, CF8, and CF8M – were thermally aged for 1500 hours at 290 °C, 330 °C, 360 °C, and 400 °C. All four alloys experienced insignificant change in strength and ductility properties but a significant reduction in absorbed impact energy. The primary microstructural and compositional changes during thermal aging were spinodal decomposition of the δ-ferrite into α/ α`, precipitationmore » of G-phase in the δ-ferrite, segregation of solute to the austenite/ ferrite interphase boundary, and growth of M23C6 carbides on the austenite/ferrite interphase boundary. These changes were shown to be highly dependent on chemical composition, particularly the concentration of C and Mo, and aging temperature. A comprehensive model is being developed to correlate the microstructural evolution with mechanical behavior and simulation for predictive evaluations of LWR coolant system components.« less