Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe-Mn-Si-Cr alloy

被引：3
|
作者：
Varanasi, Rama Srinivas [1 ]
Koyama, Motomichi [1 ]
Saitoh, Hiroyuki [2 ]
Utsumi, Reina [2 ]
Sato, Toyoto [3 ]
Orimo, Shin-ichi [1 ,4 ]
Akiyama, Eiji [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, 2-1-1 Katahira, Aoba Ku, Sendai 9808577, Japan
[2] Natl Inst Quantum Sci & Technol, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan
[3] Shibaura Inst Technol, Dept Engn Sci & Mech, 3-7-5 Toyosu, Koto Ku, Tokyo 1358548, Japan
[4] Tohoku Univ, Adv Inst Mat Res WPI AIMR, 2-1-1 Katahira, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 27期
关键词：
High pressure; Phase transformation; Epsilon martensite; Hydride; Synchrotron radiation X-ray; diffraction; HYDRIDES; IRON; EMBRITTLEMENT; DIFFRACTION; PRESSURES; STORAGE; DIAGRAM; STATE;
D O I：
10.1016/j.ijhydene.2022.11.274
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydride formation and associated phase transformations have been extensively studied in pure Fe. However, the understanding of hydrogenation in Fe-based alloy systems is still lacking. Such an investigation is particularly important in the case of austenitic (face -centered cubic) steels given that hydrogen has been reported to alter the austenite phase stability. In the current work, we investigate the phase transformations associated with depressurization of non-hydrogenated and hydrogenated Fe-Mn-Si-Cr alloy (FMS) (Fe-28.84Mn-7.04Cr-6.14Si, in mass %) using in-situ x-ray diffraction technique. Additionally, we study the change in microstructure using electron backscatter diffraction (EBSD) and electron channeling contrast imagining (ECCI).(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：10081 / 10088
页数：8
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