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Title: Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Zircaloys

Abstract

In this time period, we have continued to focus on (i) refining the thermo-mechanical fracture model for zirconium (Zr) alloys subjected to large deformations and high temperatures that accounts for the cracking of ZrH and ZrH2 hydrides, (ii) formulating a framework to account intergranular fracture due to iodine diffusion and pit formation in grain-boundaries (GBs). Our future objectives are focused on extending to a combined population of ZrH and ZrH2 populations and understanding how thermo-mechanical behavior affects hydride reorientation and cracking. We will also refine the intergranular failure mechanisms for grain boundaries with pits.

Authors:
 [1];  [1];  [1]
  1. North Carolina State Univ., Raleigh, NC (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1409268
Report Number(s):
ORNL/TM-2017/260
74851
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Mohammed, I., Zikry, M.A., and Ziaei, S. Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Zircaloys. United States: N. p., 2017. Web. doi:10.2172/1409268.
Mohammed, I., Zikry, M.A., & Ziaei, S. Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Zircaloys. United States. doi:10.2172/1409268.
Mohammed, I., Zikry, M.A., and Ziaei, S. Sat . "Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Zircaloys". United States. doi:10.2172/1409268. https://www.osti.gov/servlets/purl/1409268.
@article{osti_1409268,
title = {Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Zircaloys},
author = {Mohammed, I. and Zikry, M.A. and Ziaei, S.},
abstractNote = {In this time period, we have continued to focus on (i) refining the thermo-mechanical fracture model for zirconium (Zr) alloys subjected to large deformations and high temperatures that accounts for the cracking of ZrH and ZrH2 hydrides, (ii) formulating a framework to account intergranular fracture due to iodine diffusion and pit formation in grain-boundaries (GBs). Our future objectives are focused on extending to a combined population of ZrH and ZrH2 populations and understanding how thermo-mechanical behavior affects hydride reorientation and cracking. We will also refine the intergranular failure mechanisms for grain boundaries with pits.},
doi = {10.2172/1409268},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}

Technical Report:

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