Investigating the Orientation-Dependent Mechanical Properties and Microstructure of 304L Austenitic Stainless Steel Fabricated via Wire Arc Additive Manufacturing Mount Zion College of Engineering and Technology

Format:

Book

Conference/Event

Author/Creator:

Navaneethasanthakumar, S., author.

Contributor:

Godwin Raja Ebenezer, N.

Sankarapandian, S.

Santhosh, V.

Suresh, R.

Conference Name:

Automotive Technical Papers (2025-01-01 : Warrendale, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

Additive manufacturing technologies, particularly wire arc additive manufacturing (WAAM), have gained recognition for their ability to produce large metallic components efficiently and cost-effectively. This study investigates both the mechanical properties and microstructure of 304L austenitic stainless steel produced via WAAM, focusing on orientation-dependent behavior. Tensile specimens were prepared in transversal, diagonal, and longitudinal orientations according to ASTM E8 standards, and their mechanical properties were evaluated. The results show that the diagonal sample exhibited the highest tensile strength of 555 MPa with an elongation of 47.9%, while the longitudinal sample demonstrated the highest ductility with a notable elongation of 61.4%. Microstructural analysis, including scanning electron microscopy (SEM), revealed refined grain structures and alignment that influenced mechanical properties and stress distribution. Hardness measurements showed an increase across all orientations, with the highest hardness (101 HRC) observed in the diagonal direction. These findings highlight the impact of orientation on both mechanical properties and microstructure, providing critical insights into optimizing WAAM for high-performance applications

Notes:

Vendor supplied data

Publisher Number:

2025-01-5001

Access Restriction:

Restricted for use by site license