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Title: In-Situ Observation of FCC→HCP Transformation-Induced Plasticity Behavior During Dynamic Deformation of CoCrNi Multi-principal Element Alloys

Abstract

CoCrNi multi-principal element alloys (MPEAs) have potential as high toughness, blast resistant materials, but limited studies of their high strain rate behavior have been performed. Their high toughness has been attributed to low stacking fault energies and the activation of toughness enhancing deformation mechanisms, such as twinning- and transformation-induced plasticity (TWIP and TRIP, respectively), that may be affected by increased strain rate. This work examines a series of CoCrNi MPEAs tested with a miniaturized pressure bar, while simultaneous synchrotron x-ray diffraction and imaging are performed, and compares these results to those collected during quasi-static deformation at elevated temperatures. Here, the collected diffraction indicates that TRIP was active at elevated strain rates for the most Co-rich alloys containing 50 or 55 at. pct. Co, while TRIP behavior was suppressed at elevated strain rates in a 40 at. pct. Co alloy anticipated to experience TRIP. The suppression of TRIP in the lower Co alloy at high strain rates is attributed to adiabatic heating, consistent with suppression of TRIP as a result of elevated temperatures.

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [1];  [3];  [3];  [3];  [4];  [5];  [6];  [1];  [1]
  1. Colorado School of Mines, Golden, CO (United States)
  2. Federal Univ. of Sao Carlos, Sao Paulo (Brazil)
  3. Purdue Univ., West Lafayette, IN (United States)
  4. Intel Co., Hillsboro, OR (United States)
  5. Univ. of Virginia, Charlottesville, VA (United States)
  6. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; US Department of the Navy, Office of Naval Research (ONR); National Science Foundation (NSF); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
OSTI Identifier:
1894926
Grant/Contract Number:  
AC02-06CH11357; N00014-18-1-2567; 1624836; 424645/2018-1
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 53; Journal Issue: 5; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Copley, J. A., Coury, F. G., Ellyson, B., Klemm-Toole, J., Frishkoff, J., Finfrock, C., Fisher, Z., Kedir, N., Kirk, C., Chen, W., Parab, N., Sun, T., Fezzaa, K., Clarke, K. D., and Clarke, A. J. In-Situ Observation of FCC→HCP Transformation-Induced Plasticity Behavior During Dynamic Deformation of CoCrNi Multi-principal Element Alloys. United States: N. p., 2022. Web. doi:10.1007/s11661-022-06636-y.
Copley, J. A., Coury, F. G., Ellyson, B., Klemm-Toole, J., Frishkoff, J., Finfrock, C., Fisher, Z., Kedir, N., Kirk, C., Chen, W., Parab, N., Sun, T., Fezzaa, K., Clarke, K. D., & Clarke, A. J. In-Situ Observation of FCC→HCP Transformation-Induced Plasticity Behavior During Dynamic Deformation of CoCrNi Multi-principal Element Alloys. United States. https://doi.org/10.1007/s11661-022-06636-y
Copley, J. A., Coury, F. G., Ellyson, B., Klemm-Toole, J., Frishkoff, J., Finfrock, C., Fisher, Z., Kedir, N., Kirk, C., Chen, W., Parab, N., Sun, T., Fezzaa, K., Clarke, K. D., and Clarke, A. J. Sun . "In-Situ Observation of FCC→HCP Transformation-Induced Plasticity Behavior During Dynamic Deformation of CoCrNi Multi-principal Element Alloys". United States. https://doi.org/10.1007/s11661-022-06636-y. https://www.osti.gov/servlets/purl/1894926.
@article{osti_1894926,
title = {In-Situ Observation of FCC→HCP Transformation-Induced Plasticity Behavior During Dynamic Deformation of CoCrNi Multi-principal Element Alloys},
author = {Copley, J. A. and Coury, F. G. and Ellyson, B. and Klemm-Toole, J. and Frishkoff, J. and Finfrock, C. and Fisher, Z. and Kedir, N. and Kirk, C. and Chen, W. and Parab, N. and Sun, T. and Fezzaa, K. and Clarke, K. D. and Clarke, A. J.},
abstractNote = {CoCrNi multi-principal element alloys (MPEAs) have potential as high toughness, blast resistant materials, but limited studies of their high strain rate behavior have been performed. Their high toughness has been attributed to low stacking fault energies and the activation of toughness enhancing deformation mechanisms, such as twinning- and transformation-induced plasticity (TWIP and TRIP, respectively), that may be affected by increased strain rate. This work examines a series of CoCrNi MPEAs tested with a miniaturized pressure bar, while simultaneous synchrotron x-ray diffraction and imaging are performed, and compares these results to those collected during quasi-static deformation at elevated temperatures. Here, the collected diffraction indicates that TRIP was active at elevated strain rates for the most Co-rich alloys containing 50 or 55 at. pct. Co, while TRIP behavior was suppressed at elevated strain rates in a 40 at. pct. Co alloy anticipated to experience TRIP. The suppression of TRIP in the lower Co alloy at high strain rates is attributed to adiabatic heating, consistent with suppression of TRIP as a result of elevated temperatures.},
doi = {10.1007/s11661-022-06636-y},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 5,
volume = 53,
place = {United States},
year = {Sun Mar 06 00:00:00 EST 2022},
month = {Sun Mar 06 00:00:00 EST 2022}
}

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