轧制延展率对IF钢箔力学性能的影响

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Abstract IF steel (interstitial free steel) can be widely used in micro-electro-mechanical system (MEMS) as a structural component for the good for-mability and low yield strength. It can provide theoretical reference and practical value by studying the research on mechanical properties of IF steel foil. Based on the annealing treatment of cold rolling IF steel foil with different rolling extension rates,using the uniaxial tensile cantilever beam bending experiment combined with molecular dynamics calculation, the influence of different rolling elongation on the mechanical properties of IF steel foil was studied,and the deformation and damage mechanism of IF steel foil fatigue behavior were obtained, the rolling deformation factor was proposed. The results showed that with the increase of rolling elongation, the tensile strength of IF steel foil decreases. The elastic modulus value of IF steel was 228 GPa which was tested by the molecular dynamics simulate during the stretching process. The fatigue life of IF steel foil decreases with the increase of rolling elongation under the same cyclic strain amplitude. The larger the cyclic strain amplitude, the smaller the rolling deformation factor.

Key words： rolling elongation IF steel foil fatigue life mechanical properties rolling deformation factor

Published: 08 January 2021

CLC number:

TB332

Fund:This work was financially supported by the Natural Science Foundation Key Project-Materials Joint Foundation of Liaoning Province (20180510034).

About author:: Ming Wang received his B.E.degree in materials science and engineering from Northeastern University in July 2005 and received his Ph.D. degree in materials science from Institute of Metal Research and Northeas-tern University in July 2011.After two-year postdoctoral research at Ilmenau University of Technology,he is currently a full associate professor in Liaoning Technical University.His research interests are the synthesis and characterization of Li ion battery anode and the mecha-nical behavior and reliability of nano-layered materials.

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	WANG Ming
	ZHANG Xu
	ZHAO Yang
	DU Liang
	CHENG Lili
	LIANG Meng

Cite this article:

WANG Ming,ZHANG Xu,ZHAO Yang, et al. Effect of Rolling Elongation on the Mechanical Properties of IF Steel Foil[J]. Materials Reports, 2020, 34(Z2): 395-398.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2020/V34/IZ2/395

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