Gao Ning, Li Wenqing, Wang Yiwen. Relationships between the Mechanical Properties and Structural Parameters of the Controlled Rolled and Controlled Cooled Medium-Carbon Steels[J]. Chinese Journal of Engineering, 1989, 11(5): 426-435. DOI: 10.13374/j.issn1001-053x.1989.05.022
Citation: Gao Ning, Li Wenqing, Wang Yiwen. Relationships between the Mechanical Properties and Structural Parameters of the Controlled Rolled and Controlled Cooled Medium-Carbon Steels[J]. Chinese Journal of Engineering, 1989, 11(5): 426-435. DOI: 10.13374/j.issn1001-053x.1989.05.022

Relationships between the Mechanical Properties and Structural Parameters of the Controlled Rolled and Controlled Cooled Medium-Carbon Steels

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  • Received Date: August 17, 1988
  • Available Online: November 14, 2021
  • Experiments have been made on microalloyed medium-carbon L45 steel under the condition of controlled rolling and controlled cooling. The various mechanical properties and volume fraction of pre-eutectoid ferrite fa, size of ferrite da, free distance of ferrite λα and and the interlamellar spacing of pearlite S0 have measured. By using multiple regressive analyses to research, as a result, the mathematical expressions of relation between the various mechanical properties and structural parameters of the controlled rolled and controlled cooled microalloyed medium-carbon steels have been obtained. According to the informations provided by these mathematical expressions, into the Strenthen-toughening mechanizm of the controlled rolled and controlled cooled microalloyed mediumcarbon steels have discussed.
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