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Open AccessArticle

Influence of Continuous Annealing Temperature on Mechanical Properties and Texture of Battery Shell Steel

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Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
2
Beijing Laboratory for Modern Transportation Advanced Metal Materials and Processing Technology, University of Science and Technology Beijing, Beijing 100083, China
3
Xinyu Iron Steel Group Co., Ltd., Xinyu 338001, China
*
Author to whom correspondence should be addressed.
Metals 2020, 10(1), 52; https://doi.org/10.3390/met10010052
Received: 25 November 2019 / Revised: 9 December 2019 / Accepted: 11 December 2019 / Published: 27 December 2019
To study the influences of continuous annealing temperature on microstructure, mechanical properties and textures of battery shell steel, continuous annealing experiments were conducted at 710 °C, 730 °C, 760 °C and 780 °C respectively. The mechanical properties and normal anisotropy index (r) were measured by tensile test and the textures were investigated using the method of electron backscatter diffraction (EBSD). The results show that as annealing temperature rose, the grain size, fracture elongation and r value increased, whereas the strength and yield ratio decreased. The yield strength was 122 MPa, the tensile strength was 286 MPa, meanwhile the elongation and r value arrived at 38.8% and 2.3 when the annealing temperature rose to 780 °C. After annealing, the main texture in battery shell steel is {111} <112>, followed by {111} <110>. With the increase of annealing temperature, textures in {001} crystallographic plane weakened while textures in {111} plane strengthened, which is beneficial to the deep drawability of the steel. View Full-Text
Keywords: battery shell steel; annealing temperature; mechanical properties; crystallographic texture battery shell steel; annealing temperature; mechanical properties; crystallographic texture
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MDPI and ACS Style

Ning, B.; Zhao, Z.; Mo, Z.; Wu, H.; Peng, C.; Gong, H. Influence of Continuous Annealing Temperature on Mechanical Properties and Texture of Battery Shell Steel. Metals 2020, 10, 52.

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