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Microstructure Development in Impact Welding of a Model System

19 Pages Posted: 18 Sep 2019 Publication Status: Accepted

See all articles by Taeseon Lee

Taeseon Lee

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

Ali Nassiri

Ohio State University (OSU) - Department of Integrated Systems Engineering

Taylor Dittrich

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

Anupam Vivek

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

Glenn Daehn

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

Abstract

Characteristic features of impact welding were investigated in a simple model system of colliding copper single crystals. Large grained sheets were used to approximate single crystal to single crystal impact. Optical microscopy and electron backscatter diffraction (EBSD) analyses showed multiple features of the weld interface, which include deformation twinning, adiabatic shear banding, localized melting, and dynamic recrystallization. To support the microstructural findings, numerical simulation based on smoothed particle hydrodynamics method was conducted to predict the local temperature, pressure, and strain distributions. The insights gathered here will aid in the design of materials combinations and systems for impact welding.

Keywords: Impact Welding, Microstructure, Severe Plastic Deformation, Smoothed Particle Hydrocode

Suggested Citation

Lee, Taeseon and Nassiri, Ali and Dittrich, Taylor and Vivek, Anupam and Daehn, Glenn, Microstructure Development in Impact Welding of a Model System. Available at SSRN: https://ssrn.com/abstract=3454931 or http://dx.doi.org/10.2139/ssrn.3454931

Taeseon Lee (Contact Author)

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE) ( email )

United States

Ali Nassiri

Ohio State University (OSU) - Department of Integrated Systems Engineering

United States

Taylor Dittrich

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

United States

Anupam Vivek

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

United States

Glenn Daehn

Ohio State University (OSU) - Department of Materials Science and Engineering (MSE)

United States

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