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Dilatometric Studies on Copper Added Titanium‐Boron Steels
Author(s) -
Ghosh S. K.,
Haldar A.,
Chattopadhyay P. P.
Publication year - 2007
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200706304
Subject(s) - boron , metallurgy , copper , materials science , titanium , chemistry , organic chemistry
An attempt has been made to examine the effect of Cu addition in low carbon Ti ‐ B microalloyed steel on their continuous cooling transformation behaviour by dilatometric study. It has been demonstrated that addition of Cu by an amount of 1.5 wt% in Ti – B microalloyed steel effectively lowers the transformation start temperature. Addition of Ni (0.79 wt%) in 1.5 wt% Cu‐added Ti–B microalloyed samples further lowers the transformation temperature of austenite even at cooling rates comparable with air ‐ cooling condition. The microstructural investigation of the samples subjected to the dilatometric study under different cooling rates suggests the possibility of obtaining pearlite free multiphase microstructures in 1.5 wt% Cu – and 0.79 wt% Ni – added Ti – B microalloyed steel by air – cooling from the austenite region.