Effect of cooling rates after annealing on the microstructure and properties of 1000 MPa grade automobile steel for cold forming

Dong, Ruifeng; Zhao, Qingbo; Xiaohong, BI; Deng, Xiangtao; Shen, Wentian; Lu, Yongfa; Teri, Gele; , Baoxing

doi:10.1088/2053-1591/ac3588

Public

Effect of cooling rates after annealing on the microstructure and properties of 1000 MPa grade automobile steel for cold forming

Published in Materials Research Express • Nov 1, 2021

Authors:

Ruifeng Dong

Qingbo Zhao

BI Xiaohong

Abstract

Abstract The effects of different cooling rates (0.05 °C s−1, 0.1 °C s−1, and 0.2 °C s−1) on the microstructure and mechanical properties of 1000 MPa grade automobile steel for cold forming after two-phase annealing were studied. The microstructure of the experimental steel was observed by SEM and T...

Subject

Ultimate tensile strength

Elongation

Microstructure

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