Phase Transformation Behaviors of Nb-V-Ti Microalloyed Pipeline Steel X70
2013 ◽
Vol 750-752
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pp. 380-384
Keyword(s):
The CCT (continuous cooling transformation) diagrams of the Nb-V-Ti without Mo containing microalloyed pipeline steel X70 were investigated. The microstructures observed in continuous cooled specimens are composed of P (pearlite), PF (polygonal ferrite), QF (quasi-polygonal ferrite), and GF (granular bainite ferrite). At low cooling rates between 0.1°C/s and 1°C/s, the microstructure of the steel consisted of banded ferrite and pearlite but higher cooling rates suppressed its formation.
1991 ◽
Vol 6
(5)
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pp. 969-986
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2001 ◽
Vol 17
(2)
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pp. 127-134
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2011 ◽
Vol 42
(9)
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pp. 2781-2793
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1989 ◽
Vol 34
(1)
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pp. 35-51
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