Determination of retained austenite using an x-ray texture goniometer

Zhang, M. -X., Kelly, P. M., Bekessy, L. K. and Gates, J. D. (2000) Determination of retained austenite using an x-ray texture goniometer. Materials Characterization, 45 1: 39-49. doi:10.1016/S1044-5803(00)00044-9


Author Zhang, M. -X.
Kelly, P. M.
Bekessy, L. K.
Gates, J. D.
Title Determination of retained austenite using an x-ray texture goniometer
Journal name Materials Characterization   Check publisher's open access policy
ISSN 1044-5803
1873-4189
Publication date 2000-07
Sub-type Article (original research)
DOI 10.1016/S1044-5803(00)00044-9
Volume 45
Issue 1
Start page 39
End page 49
Total pages 11
Place of publication Philadelphia, PA, United States
Publisher Elsevier Science
Collection year 2000
Language eng
Subject C1
291403 Alloy Materials
680603 Materials performance and processes
Abstract A new X-ray technique has been developed for determining the amount of retained austenite in steels with preferred orientation, such as white cast irons and deformed steels. The technique uses an X-ray texture goniometer. The X-ray goniometer was run as ifa texture was being determined, but the raw data were collected via a special program. From analysis of the raw data for several austenite and martensite reflections, a very accurate value for the retained austenite content was obtained. The technique has been evaluated using a textured specimen with a known amount of retained austenite, and by carrying out the determination at different orientations of a single specimen. Compared with other methods, this technique can produce retained austenite values to an accuracy of +/-1.5%. As an application of this technique, the relationship between the amount of retained austenite and heat-treatment parameters in a white cast iron has been studied. (C) 2000 Elsevier Science Inc. All rights reserved.
Keyword Materials Science, Characterization & Testing
Retained Austenite
X-ray Diffraction
X-ray Goniometer
Transformation
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Tue, 10 Jun 2008, 12:25:58 EST