Method for improving mechanical properties by changing gradient nanotwinned structure of metallic material

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United States of America Patent

PATENT NO 12000057
APP PUB NO 20210147991A1
SERIAL NO

17044617

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Abstract

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A method for improving mechanical properties by changing a gradient nanotwinned structure of metallic materials is the technical field of nanostructured metallic materials. The method uses the inherent principles of microstructure and mechanical properties of metallic materials to improve materials mechanical properties. The metallic materials has a gradient nanotwinned structure. The principles of microstructure and mechanical properties of the metallic materials mean that the mechanical properties of the metallic materials are adjusted by changing the structural gradient scale of the nanotwinned structure. The method combines two strengthening methods of nanotwins and gradient structure, and can obviously improve the mechanical properties of the metallic materials. For pure copper materials of the gradient nanotwinned structure prepared by an electrodeposition technology: the yield strength is 481±15 MPa, the tensile strength is 520±12 MPa, the uniform elongation can be 7±0.5%, and the elongation to failure can be 11.7±1.3%.

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Patent Owner(s)

Patent OwnerAddress
INSTITUTE OF METAL RESEARCH CHINESE ACADEMY OF SCIENCES110016 NO 72 WENHUA ROAD SHENHE DISTRICT LIAONING SHENYANG SHENYANG CITY LIAONING PROVINCE 110016

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Zhao Liaoning, CN 14 23
Jin, Shuai Liaoning, CN 8 1
Lu, Lei Liaoning, CN 212 519

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