Electron backscattering diffraction analysis of an ancient wootz steel blade from central India

Barnett, M. R., Sullivan, A. and Balasubramaniam, R. 2009, Electron backscattering diffraction analysis of an ancient wootz steel blade from central India, Materials characterization, vol. 60, no. 4, pp. 252-260.

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Title Electron backscattering diffraction analysis of an ancient wootz steel blade from central India
Author(s) Barnett, M. R.
Sullivan, A.
Balasubramaniam, R.
Journal name Materials characterization
Volume number 60
Issue number 4
Start page 252
End page 260
Total pages 9
Publisher Elsevier
Place of publication New York, N.Y.
Publication date 2009-04
ISSN 1044-5803
1873-4189
Keyword(s) wootz
forging
carbide banding
EBSD
cementite
texture
steel
Summary The electron backscattering diffraction technique was used to analyse the nature of carbides present in an ancient wootz steel blade. Bulky carbides, pro-eutectoid carbide along the prior austenite grain boundaries and fine spheroidized carbides were detected. Electron backscattering diffraction was employed to understand the texture of these carbides. The orientations of the cementite frequently occur in clusters, which points to a common origin of the members of the cluster. For the bands of coarse cementite, the origin is probably large coarse particles formed during the original cooling of the wootz cake. Pearlite formed earlier in the forging process has led to groups of similarly oriented fine cementite particles. The crystallographic texture of the cementite is sharp whereas that of the ferrite is weak. The sharp cementite textures point to the longevity of the coarse cementite throughout the repeated forging steps and to the influence of existing textured cementite on the nucleation of new cementite during cooling.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861103 Basic Iron and Steel Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022570

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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