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Title: In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels

Abstract

Two-dimensional distributions of microstructural characteristics of austenite (γ) around the Lüders band in medium-Mn transformation-induced plasticity (TRIP) steel were revealed by in situ high-energy X-ray diffraction. Lüders band propagation leads to significant changes in the volume fraction and lattice strains of austenite. The evolution of the lattice strain of γ-311 accords well with the true yield behavior model and is used to estimate the angle of the Lüders band front with respect to the tensile axis. The modified Williamson-Hall analysis shows that the dislocation density in austenite increased from 7 × 10 14 m -2 to 1.5 × 10 15 m -2 after Lüders band propagation. This in situ high-energy X-ray diffraction study unravels two-dimensional distribution of microstructural evolution during Lüders band propagation in medium-Mn TRIP steels.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [1]
  1. University of Science and Technology Beijing (China)
  2. 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) (SC-22); National Key Research and Development Program of China; National Natural Science Foundation of China (NNSFC); Fundamental Research Funds for the Central Universities; Chinese Academy of Sciences (CAS) - State Key Laboratory for Advanced Metals and Materials
OSTI Identifier:
1491803
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 6; Journal Issue: 12; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; High-energy X-ray diffraction; Lüders band; Medium-Mn TRIP steel

Citation Formats

Zhang, Minghe, Li, Runguang, Ding, Jie, Chen, Haiyang, Park, Jun-Sang, Almer, Jonathan, and Wang, Yan-Dong. In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels. United States: N. p., 2018. Web. doi:10.1080/21663831.2018.1530698.
Zhang, Minghe, Li, Runguang, Ding, Jie, Chen, Haiyang, Park, Jun-Sang, Almer, Jonathan, & Wang, Yan-Dong. In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels. United States. doi:10.1080/21663831.2018.1530698.
Zhang, Minghe, Li, Runguang, Ding, Jie, Chen, Haiyang, Park, Jun-Sang, Almer, Jonathan, and Wang, Yan-Dong. Mon . "In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels". United States. doi:10.1080/21663831.2018.1530698. https://www.osti.gov/servlets/purl/1491803.
@article{osti_1491803,
title = {In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels},
author = {Zhang, Minghe and Li, Runguang and Ding, Jie and Chen, Haiyang and Park, Jun-Sang and Almer, Jonathan and Wang, Yan-Dong},
abstractNote = {Two-dimensional distributions of microstructural characteristics of austenite (γ) around the Lüders band in medium-Mn transformation-induced plasticity (TRIP) steel were revealed by in situ high-energy X-ray diffraction. Lüders band propagation leads to significant changes in the volume fraction and lattice strains of austenite. The evolution of the lattice strain of γ-311 accords well with the true yield behavior model and is used to estimate the angle of the Lüders band front with respect to the tensile axis. The modified Williamson-Hall analysis shows that the dislocation density in austenite increased from 7 × 1014 m-2 to 1.5 × 1015 m-2 after Lüders band propagation. This in situ high-energy X-ray diffraction study unravels two-dimensional distribution of microstructural evolution during Lüders band propagation in medium-Mn TRIP steels.},
doi = {10.1080/21663831.2018.1530698},
journal = {Materials Research Letters},
issn = {2166-3831},
number = 12,
volume = 6,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
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Cited by: 2 works
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Figures / Tables:

Figure 1. Figure 1.: Experimental setup of the tensile test with in situ HE-XRD experiments.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.