Unveiling the Characteristics of ER70S-6 low Carbon Steel Alloy Produced by wire arc Additive Manufacturing at Different Travel Speeds

• DOI: 10.1007/s12540-024-01766-x
• Publication Date: 2024-08-12T13:08:25Z
• Authors: Mohammed Dekis; Mahmoud Tawfik; Mohamed Egiza; Montasser Dewidar
• Keywords: Carbon steel; Carbon fibers; Alloy steel

Abstract Wire Arc Additive Manufacturing (WAAM) produces metal components with crucial properties dependent on process parameters. Understanding the effects of these parameters microstructure and mechanical is vital for optimizing WAAM. This study investigated impact varying travel speeds (TS) low carbon steel ER70S-6 alloy produced by WAAM process. The hypothesis centred different TS values heat input (HI) cooling rates, subsequent resulting deposited material. was at three TS: 120, 150, 180 mm/min. Microstructure (microhardness, tensile strength, elongation) were evaluated each condition. Distinct microstructures observed in samples, influenced rates TS. emerged regions deposits due to Higher (180 mm/min) significantly reduced pores cracks while enhancing yield strength (YS) ultimate (UTS) up 25.2 ± 0.77% elongation 502.3 3.17 MPa UTS, respectively. However, UTS remained slightly lower (93%) than catalogued value (540 MPa), indicating a mild softening effect. WAAM-produced alloy. provides key insights into steel, paving way improved component production diverse industrial applications.