Advances in X-Ray Chemical Analysis, Japan
Online ISSN : 2758-3651
Print ISSN : 0911-7806
Analytical Application
Observation of Phase Transformation of Low-Alloyed TRIP Steel by Using Rietveld Analysis with Neutron Diffraction
Kazuki UMEMURA, Yusuke ONUKI, Akinori HOSHIKAWA, Toshiro TOMIDA, Yasuaki TANAKA, Kazuki FUJIWARA, Yoshihiro SUWA, Kaori KAWANO, Shigeo SATO
Author information
Keywords: Neutron diffraction, Rietveld analysis, Bainite transformation, Texture, Transformation-induced-plasticity steel
JOURNAL FREE ACCESS

2022 Volume 53 Pages 231-241

Details
Download PDF (2034K)
Download citation RIS

(compatible with EndNote, Reference Manager, ProCite, RefWorks)

BIB TEX

(compatible with BibDesk, LaTeX)

Text
How to download citation
Contact us
Abstract

Time-of-Flight neutron diffraction measurements were performed to investigate microstructural evolution during bainitic transformation of a low-alloyed transformation induced plasticity steel. Phase fractions of austenite and ferrite phases during the transformation are determined by analyzing diffraction intensities by the Rietveld method. March-Dollase (MD) and Extended Williams-Imhof-Matthies-Vihel (E-WIMV) methods were also employed in the Rietveld analysis to correct effects of crystallographic textures on the diffraction intensities. It was confirmed that the E-WIMV method could correct the influence of textures on the diffraction intensity with higher accuracy than the MD method. The analysis revealed the presence of low-carbon and high-carbon austenite phases during the bainitic transformation. Ex-situ measurements on quenched samples using electron microscopy and X-ray diffraction confirmed that the low-carbon and high-carbon austenite phases observed by neutron diffraction were those transformed to a martensite phase and retained as an austenite phase at room temperature, respectively.

Content from these authors
© 2022 The Discussion Group of X-Ray Analysis, The Japan Society for Analytical Chemistry
Previous article Next article
Favorites & Alerts

Recently viewed articles
Share this page
feedback
 Top