رفتار استحاله سرد شدن پیوسته فولاد خط لوله‎ی X70

Continuous cooling transformation behavior of X70 pipeline steel

رفتار استحاله سرد شدن پیوسته فولاد خط لوله‎ی X70 

ABSTRACT

The comprehensive mechanical properties of steel depended on the final microstructure and grain refinement. In order to obtain high performance pipeline steel, composition design and the application of controlled rolling and controlled cooling technology had become a key, especially the latter which had decisive influence on the product’s final texture and comprehensive performance in modern iron and steel material production. Along with the development of the modern rolling equipment as well as the in-depth study of controlled rolling and controlled cooling technology, the application of controlled rolling and controlled cooling technology had become an important means of fully excavating the potential of the material properties based on the existing material chemical compositions and it had got the extensive attention from modern iron and steel materials research field.