skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A simple variant selection in stress-driven martensitic transformation

Abstract

The study of orientation variant selection helps to reveal the mechanism and dynamic process of martensitic transformations driven by temperature or pressure/stress. This is challenging due to the multiple variants which may coexist. While effects of temperature and microstructure in many martensitic transformations have been studied in detail, effects of stress and pressure are much less understood. Here, an in situ variant selection study of Mn 2 O 3 across the cubic-to-orthorhombic martensitic transformation explores orientation variants at pressures up to 51.5 GPa and stresses up to 5.5 GPa, using diamond anvil cells in radial geometry with synchrotron X-ray diffraction. The diamonds not only exert pressure but also impose stress and cause plastic deformation and texture development. The crystal orientation changes were followed in situ and a {110} c 〈001〉 c // (100) o 〈010〉 o relationship was observed. Only the {110} c plane perpendicular to the stress direction was selected to become (100) o , resulting in a very strong texture of the orthorhombic phase. Contrary to most other martensitic transformations, this study reveals a clear and simple variant selection that is attributed to structural distortions undermore » pressure and stress.« less

Authors:
; ; ; ORCiD logo; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1532817
Grant/Contract Number:  
FG02-05ER15637
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Yue, Binbin, Hong, Fang, Hirao, Naohisa, Vasin, Roman, Wenk, Hans-Rudolf, Chen, Bin, and Mao, Ho-Kwang. A simple variant selection in stress-driven martensitic transformation. United States: N. p., 2019. Web. doi:10.1073/pnas.1906365116.
Yue, Binbin, Hong, Fang, Hirao, Naohisa, Vasin, Roman, Wenk, Hans-Rudolf, Chen, Bin, & Mao, Ho-Kwang. A simple variant selection in stress-driven martensitic transformation. United States. doi:10.1073/pnas.1906365116.
Yue, Binbin, Hong, Fang, Hirao, Naohisa, Vasin, Roman, Wenk, Hans-Rudolf, Chen, Bin, and Mao, Ho-Kwang. Wed . "A simple variant selection in stress-driven martensitic transformation". United States. doi:10.1073/pnas.1906365116.
@article{osti_1532817,
title = {A simple variant selection in stress-driven martensitic transformation},
author = {Yue, Binbin and Hong, Fang and Hirao, Naohisa and Vasin, Roman and Wenk, Hans-Rudolf and Chen, Bin and Mao, Ho-Kwang},
abstractNote = {The study of orientation variant selection helps to reveal the mechanism and dynamic process of martensitic transformations driven by temperature or pressure/stress. This is challenging due to the multiple variants which may coexist. While effects of temperature and microstructure in many martensitic transformations have been studied in detail, effects of stress and pressure are much less understood. Here, an in situ variant selection study of Mn 2 O 3 across the cubic-to-orthorhombic martensitic transformation explores orientation variants at pressures up to 51.5 GPa and stresses up to 5.5 GPa, using diamond anvil cells in radial geometry with synchrotron X-ray diffraction. The diamonds not only exert pressure but also impose stress and cause plastic deformation and texture development. The crystal orientation changes were followed in situ and a {110} c 〈001〉 c // (100) o 〈010〉 o relationship was observed. Only the {110} c plane perpendicular to the stress direction was selected to become (100) o , resulting in a very strong texture of the orthorhombic phase. Contrary to most other martensitic transformations, this study reveals a clear and simple variant selection that is attributed to structural distortions under pressure and stress.},
doi = {10.1073/pnas.1906365116},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1906365116

Save / Share:

Works referenced in this record:

A profile refinement method for nuclear and magnetic structures
journal, June 1969