Ultrasonic additive manufacturing of steel: Method, post-processing treatments and properties
- Ben-Gurion University of the Negev, Beer-Sheva (Israel). Department of Materials Engineering
- Columbia Univ., New York, NY (United States). Department of Mechanical Engineering
- Univ. of Tennessee, Knoxville, TN (United States). Department of Mechanical, Aerospace and Biomedical Engineering
- The Ohio State Univ., Columbus, OH (United States). Department of Mechanical and Aerospace Engineering
In this study, ultrasonic additive manufacturing (UAM) was applied to fabricate laminated carbon steel structures. The feasibility of UAM to manufacture low-alloy carbon steel samples was proven. Interface investigation of the UAM parts was conducted by SEM, EBSD and TEM analysis. Multiple defects at the interfaces of the as-printed parts were observed. In order to improve the structural homogeneity and mechanical properties of the parts, spark plasma sintering (SPS) and hot isostatic pressing (HIP) post-treatments were applied. As a result, after both treatments, interface defects were healed and the shear strength of the welding interfaces was significantly improved. Lastly, treatment by SPS apparatus showed higher shear strength improvements as compared to the HIP-treated specimens.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1471846
- Journal Information:
- Journal of Materials Processing Technology, Vol. 256, Issue C; ISSN 0924-0136
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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