PRODUCTION EXPERIMENT OF TITANIUM MICROALLOYED THREADED STEEL BARS
This article introduces the production process of titanium microalloyed threaded steel bars and the influence of different titanium contents on the microstructure and properties of threaded steel bars.The experiment shows that with the increase of titanium content,the strength of threaded steel bars is significantly improved.However,with the increase of tita-nium content,there is a phenomenon of no yield platform in the tensile curve.The reason is that the addition of titanium re-duces the critical transformation rate of bainite,resulting in bainite transformation.The proportion of bainite in the structure is relatively high,leading to no yield plateau in the tensile curve.
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