Effect of Intercritical Annealing Temperature on Development of Cold Rolled Dual Phase Steel from Q345 Steel

Autor: Shi Cheng Ma, Ji Yuan Liu, Fu Xian Zhu
Rok vydání: 2013
Předmět:
Zdroj: Applied Mechanics and Materials. :693-696
ISSN: 1662-7482
DOI: 10.4028/www.scientific.net/amm.313-314.693
Popis: Cold rolled dual phase steel was developed from Q345 steel by heat treatment procedure for automotive applications. The ultimate tensile strength was improved about 100MPa higher than the traditional cold-rolled Q345 steel in the continuous annealing simulation experiment. The microstructure presented varied characteristics in different intercritical annealing temperatures; mechanical properties were changed correspondingly as well. The chief discussions are focus on the recrystallization, hardenability of austenite and martensite transformation in the experiment.
Databáze: OpenAIRE