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Title: Structural Relationship Between One-Dimensional Crystals of Guinier-Preston-Bagaryatsky Zones in Al-Cu-Mg Alloys

Abstract

The crystal structure of GPB zones in Al-Cu-Mg alloys is very unique, consisting of agglomeration of 1D crystals. Current work identifies and fully describes a new type of 1D crystal of the GPB zone family based on high-resolution STEM observations. The observation enables to generalize the structural relationship between the possible 1D crystals. Ab-initio calculations show that the newly identified 1D-crystal has a formation energy that is comparable to the larger type, while much more favorable than FCC-based models.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1013923
Report Number(s):
PNNL-SA-76716
Journal ID: ISSN 1359-6462; SCMAF7; KP1704020; TRN: US201110%%826
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Scripta Materialia, 64(11):999-1002
Additional Journal Information:
Journal Volume: 64; Journal Issue: 11; Journal ID: ISSN 1359-6462
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AGGLOMERATION; ALLOYS; CRYSTAL STRUCTURE; Structural; relationship; between; 1D; crystals; GPB; zones

Citation Formats

Kovarik, Libor, and Mills, M J. Structural Relationship Between One-Dimensional Crystals of Guinier-Preston-Bagaryatsky Zones in Al-Cu-Mg Alloys. United States: N. p., 2011. Web. doi:10.1016/j.scriptamat.2011.01.033.
Kovarik, Libor, & Mills, M J. Structural Relationship Between One-Dimensional Crystals of Guinier-Preston-Bagaryatsky Zones in Al-Cu-Mg Alloys. United States. https://doi.org/10.1016/j.scriptamat.2011.01.033
Kovarik, Libor, and Mills, M J. 2011. "Structural Relationship Between One-Dimensional Crystals of Guinier-Preston-Bagaryatsky Zones in Al-Cu-Mg Alloys". United States. https://doi.org/10.1016/j.scriptamat.2011.01.033.
@article{osti_1013923,
title = {Structural Relationship Between One-Dimensional Crystals of Guinier-Preston-Bagaryatsky Zones in Al-Cu-Mg Alloys},
author = {Kovarik, Libor and Mills, M J},
abstractNote = {The crystal structure of GPB zones in Al-Cu-Mg alloys is very unique, consisting of agglomeration of 1D crystals. Current work identifies and fully describes a new type of 1D crystal of the GPB zone family based on high-resolution STEM observations. The observation enables to generalize the structural relationship between the possible 1D crystals. Ab-initio calculations show that the newly identified 1D-crystal has a formation energy that is comparable to the larger type, while much more favorable than FCC-based models.},
doi = {10.1016/j.scriptamat.2011.01.033},
url = {https://www.osti.gov/biblio/1013923}, journal = {Scripta Materialia, 64(11):999-1002},
issn = {1359-6462},
number = 11,
volume = 64,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 2011},
month = {Wed Jun 01 00:00:00 EDT 2011}
}