Crystallography of spheroidite and tempered martensite

Zhang M.-X. and Kelly P.M. (1998) Crystallography of spheroidite and tempered martensite. Acta Materialia, 46 11: 4081-4091. doi:10.1016/S1359-6454(98)00046-9


Author Zhang M.-X.
Kelly P.M.
Title Crystallography of spheroidite and tempered martensite
Journal name Acta Materialia   Check publisher's open access policy
ISSN 1359-6454
Publication date 1998-07-01
Sub-type Article (original research)
DOI 10.1016/S1359-6454(98)00046-9
Open Access Status Not yet assessed
Volume 46
Issue 11
Start page 4081
End page 4091
Total pages 11
Publisher Elsevier Ltd
Language eng
Subject 2500 Materials Science
2504 Electronic, Optical and Magnetic Materials
2506 Metals and Alloys
Abstract Convergent beam Kikuchi line diffraction patterns, which have an accuracy more than an order of magnitude better than the more widely used conventional selected area diffraction, have been used to determine the orientation relationship between cementite and the ferrite matrix in spheroidite and tempered martensite. It has been shown that when pearlite spheroidized in plain carbon eutectoid steel, the original orientation relationship between cementite and ferrite is maintained in some cases. In other pearlite colonies in the later stages of the spheroidization the cementite particles rotate into a different orientation relationship with respect to the surrounding ferrite. In twinned martensite tempered in the range 450-650°C, the Isaichev orientation relationship between ferrite and cementite is obeyed, until recrystallization of the ferrite occurs. After full recrystallization the strict orientation relationship is destroyed, but the cementite particles still maintain a pseudo orientation relationship, in which close packed planes are approximately parallel, while the angle between corresponding close packed directions varies widely.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 30 Aug 2016, 12:38:03 EST by System User