Acicular ferrite formation during hot plate rolling for pipeline steels

Zhao, MC, Shan, YY, Xiao, FR and Yang, K (2003) Acicular ferrite formation during hot plate rolling for pipeline steels. Materials Science And Technology, 19 3: 355-359.

Document type: Journal Article
Collection: School of Mechanical & Mining Engineering Publications

Author(s) Zhao, MC
Shan, YY
Xiao, FR
Yang, K
Title Acicular ferrite formation during hot plate rolling for pipeline steels
Journal name Materials Science And Technology
Publication date 2003
Sub-type Article
Volume number 19
Issue number 3
ISSN 0267-0836
Start page 355
End page 359
Total pages 5
Place of publication Leeds
Publisher Maney Publishing
Abstract The transformation of supercooled austenite in a commercial pipeline steel was investigated by means of continuous cooling transformation (CCT) and hot simulation experiments. Based on the obtained results, an improved thermomechanical control process (TMCP) was proposed, which could produce a mixed microstructure dominated by acicular ferrite. Results indicated that an increase in the cooling rate could improve the percentage of acicular ferrite in the final microstructure under the present experimental conditions. Furthermore, the acicular ferrite dominated microstructure could be obtained by a two stage controlled rolling in the austenite recrystallisation region plus the non-recrystallisation region and controlled cooling at a cooling rate of 30 K s(-1).
Keyword(s) Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Continuous Cooling Transformation
Carbon
 
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