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Title: A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys

Abstract

Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material’s free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.

Authors:
 [1];  [2];  [3];  [4];  [2];  [5]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Northwestern Univ., Evanston, IL (United States). Dept. of Mechanical Engineering
  2. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering
  3. QuesTek Inovations LLC,Evanston, IL (United States)
  4. Harvard Univ., Cambridge, MA (United States). School of Engineering and Applied Sciences (SEAS)
  5. Northwestern Univ., Evanston, IL (United States). Dept. of Mechanical Engineering
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1305843
Alternate Identifier(s):
OSTI ID: 1324026
Report Number(s):
LLNL-JRNL-675697
Journal ID: ISSN 0142-1123
Grant/Contract Number:  
AC52-07NA27344; 70NANB13Hl94; 70NANB14H012; LLNL-JRNL-675697
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Fatigue
Additional Journal Information:
Journal Volume: 91; Journal Issue: P1; Journal ID: ISSN 0142-1123
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Microstructures; Finite elements; Surface effects; Image-based modeling

Citation Formats

Moore, John A., Frankel, Dana, Prasannavenkatesan, Rajesh, Domel, August G., Olson, Gregory B., and Liu, Wing Kam. A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys. United States: N. p., 2016. Web. doi:10.1016/j.ijfatigue.2016.06.006.
Moore, John A., Frankel, Dana, Prasannavenkatesan, Rajesh, Domel, August G., Olson, Gregory B., & Liu, Wing Kam. A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys. United States. doi:10.1016/j.ijfatigue.2016.06.006.
Moore, John A., Frankel, Dana, Prasannavenkatesan, Rajesh, Domel, August G., Olson, Gregory B., and Liu, Wing Kam. Mon . "A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys". United States. doi:10.1016/j.ijfatigue.2016.06.006. https://www.osti.gov/servlets/purl/1305843.
@article{osti_1305843,
title = {A crystal plasticity-based study of the relationship between microstructure and ultra-high-cycle fatigue life in nickel titanium alloys},
author = {Moore, John A. and Frankel, Dana and Prasannavenkatesan, Rajesh and Domel, August G. and Olson, Gregory B. and Liu, Wing Kam},
abstractNote = {Nickel Titanium (NiTi) alloys are often used in biomedical devices where failure due to mechanical fatigue is common. For other alloy systems, computational models have proven an effective means of determining the relationship between microstructural features and fatigue life. This work will extend the subset of those models which were based on crystal plasticity to examine the relationship between microstructure and fatigue life in NiTi alloys. It will explore the interaction between a spherical inclusion and the material’s free surface along with several NiTi microstructures reconstructed from 3D imaging. This work will determine the distance at which the free surface interacts with an inclusion and the effect of applied strain of surface-inclusion interaction. The effects of inclusion-inclusion interaction, matrix voiding, and matrix strengthening are explored and ranked with regards to their influence on fatigue life.},
doi = {10.1016/j.ijfatigue.2016.06.006},
journal = {International Journal of Fatigue},
number = P1,
volume = 91,
place = {United States},
year = {2016},
month = {6}
}

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Works referencing / citing this record:

Data-driven multi-scale multi-physics models to derive process–structure–property relationships for additive manufacturing
journal, January 2018