Back calculation of parent austenite orientation using a clustering approach

Tari, V., Rollett, A.D. and Beladi, H. 2013, Back calculation of parent austenite orientation using a clustering approach, Journal of applied crystallography, vol. 46, pp. 210-215.

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Title Back calculation of parent austenite orientation using a clustering approach
Author(s) Tari, V.
Rollett, A.D.
Beladi, H.
Journal name Journal of applied crystallography
Volume number 46
Start page 210
End page 215
Total pages 6
Publisher Wiley
Place of publication London, England
Publication date 2013
ISSN 0021-8898
1600-5767
Keyword(s) misorientation fundamental zones
orientation relationships
parent orientations
phase transformation
steels
Summary A new approach is presented for calculating the parent orientation from sets of variants of orientations produced by phase transformation. The parent austenite orientation is determined using the orientations of bainite variants that transformed from a single parent austenite grain. In this approach, the five known orientation relationships are used to back transform each observed bainite variant to all their potential face-centered-cubic (f.c.c.) parent orientations. A set of potential f.c.c. orientations has one representative from each bainite variant, and each set is assembled on the basis of minimum mutual misorientation. The set of back-transformed orientations with the minimum summation of mutual misorientation angle (SMMA) is selected as the most probable parent (austenite) orientation. The availability of multiple sets permits a confidence index to be calculated from the best and next best fits to a parent orientation. The results show good agreement between the measured parent austenite orientation and the calculated parent orientation having minimum SMMA.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, Wiley-Blackwell Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30057582

Document type: Journal Article
Collection: Institute for Frontier Materials
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