Research on Microstructure and Properties of Ti Microalloyed Cast Steel
YAO Liping
YOU Long
PAN Kunming
ZHANG Xin
WANG Zhou
Abstract：In response to the current problem of high material costs caused by the simultaneous use of multiple elements in microalloyed cast steel,the microstructure and mechanical properties of ZG230-450 cast steel and ZG230-450 cast steel microalloyed with Ti element alone were compared by using instruments and equipment such as optical microscope,scanning electron microscope,and universal tensile testing machine.The results show that the hardness and tensile strength of Ti microalloyed ZG230-450 cast steel were significantly improved,reaching 164HB and 298 MPa.Compared with ordinary ZG230-450 cast steel,the hardness and tensile strength increased by 10.1％and 11.1％,respectively;The ZG230-450 impact toughness value of Ti microalloyed ZG230-450 cast steel is 77.4 J,which shows a decrease of 14.2％.Considering both the hardness and tensile strength of the material,Ti microalloying significantly improves the mechanical properties of ZG230-450 cast steel.
Keywords：cast steelmicroalloyingmicrostructuremechanical property
Publication Date：2024-12-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 38-42 )