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Title: Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%)

Abstract

b-Titanium (Ti) alloys have applications in several industries (e.g. aerospace, automotive, and biomedical) where material performance requirements vary widely. To tailor the microstructure and mechanical properties of b-Ti alloys for various applications, it is critical to understand the influence of individual alloying elements. Toward this goal, we investigated the effect of individual alloying additions on the microstructure and resultant mechanical properties of four model b-Ti alloys: Ti-12Cr, Ti-12Cr-3Al, Ti-12Cr-1Fe, and Ti-12Cr-1Fe3Al (wt.%). The microstructures of these alloys were studied using x-ray diffraction, electron microscopy, and atom probe tomography. The mechanical properties were analyzed via Vickers and Rockwell hardness measurements and tensile testing. The addition of 1 wt.% Fe resulted in an approximate 5% increase in elongation-to-failure (ef), while the addition of 3 wt.% Al did not appear to significantly affect ef. The addition of Fe and Al decreased the yield and ultimate tensile strengths.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [3]
  1. UNIVERSITY PROGRAMS
  2. Kansai University, Osaka, Japan
  3. BATTELLE (PACIFIC NW LAB)
  4. Michigan State University
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1571141
Report Number(s):
PNNL-SA-148014
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
JOM. The Journal of the Minerals, Metals and Materials Society
Additional Journal Information:
Journal Volume: 71; Journal Issue: 7
Country of Publication:
United States
Language:
English

Citation Formats

Ballor, Joann P., Ikeda, M, Kautz, Elizabeth J., Boehlert, Carl, and Devaraj, Arun. Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%). United States: N. p., 2019. Web. doi:10.1007/s11837-019-03467-y.
Ballor, Joann P., Ikeda, M, Kautz, Elizabeth J., Boehlert, Carl, & Devaraj, Arun. Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%). United States. doi:10.1007/s11837-019-03467-y.
Ballor, Joann P., Ikeda, M, Kautz, Elizabeth J., Boehlert, Carl, and Devaraj, Arun. Mon . "Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%)". United States. doi:10.1007/s11837-019-03467-y.
@article{osti_1571141,
title = {Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%)},
author = {Ballor, Joann P. and Ikeda, M and Kautz, Elizabeth J. and Boehlert, Carl and Devaraj, Arun},
abstractNote = {b-Titanium (Ti) alloys have applications in several industries (e.g. aerospace, automotive, and biomedical) where material performance requirements vary widely. To tailor the microstructure and mechanical properties of b-Ti alloys for various applications, it is critical to understand the influence of individual alloying elements. Toward this goal, we investigated the effect of individual alloying additions on the microstructure and resultant mechanical properties of four model b-Ti alloys: Ti-12Cr, Ti-12Cr-3Al, Ti-12Cr-1Fe, and Ti-12Cr-1Fe3Al (wt.%). The microstructures of these alloys were studied using x-ray diffraction, electron microscopy, and atom probe tomography. The mechanical properties were analyzed via Vickers and Rockwell hardness measurements and tensile testing. The addition of 1 wt.% Fe resulted in an approximate 5% increase in elongation-to-failure (ef), while the addition of 3 wt.% Al did not appear to significantly affect ef. The addition of Fe and Al decreased the yield and ultimate tensile strengths.},
doi = {10.1007/s11837-019-03467-y},
journal = {JOM. The Journal of the Minerals, Metals and Materials Society},
number = 7,
volume = 71,
place = {United States},
year = {2019},
month = {7}
}

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