Metallic components with enhanced mechanical strength through surface mechanical grinding

Patent · Tue Sep 05 00:00:00 EDT 2023

OSTI ID:2222275

Ding, Jie; Li, Qiang; Shang, Zhongxia; Zhang, Xinghang

A method of strengthening a component made of a metallic material. The method includes subjecting the component to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure on the surface of the component, resulting in increased tensile strength of the component. A method of strengthening a component made of a TWIP steel. The method includes subjecting the component made of TWIP steel to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure containing a surface nanolaminate layer, a shear band layer, and an inner deformation twinned layer, resulting in increased tensile strength of the component. A component made of a TWIP steel containing a gradient structure with a surface nanolaminate layer, a shear band layer, and a deformation twinned layer.

• Research Organization: Purdue Univ., West Lafayette, IN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: NE0008549
• Assignee: Purdue Research Foundation (West Lafayette, IN)
• Patent Number(s): 11,746,393
• Application Number: 17/730,557
• OSTI ID: 2222275
• Resource Relation: Patent File Date: 04/27/2022
• Country of Publication: United States
• Language: English