Effect of cooling rate on the phase evolution of ۳۱۶L stainless steel deposited by wire and arc additive manufacturing

Wire and arc additive manufacturing (AM) can be used for cladding, e.g., 316L stainless steel in order to improve surface quality. In this study, 316L was deposited on a substrate with the similar composition to investigate the effect of heat input and cooling rate. In this regard, three beads with different heat inputs of 250, 200, and 150 J/mm were printed. The cooling rates calculated by SYSWELD software were about 167, 91, and 380 ℃𝑠⁄ for 250-bead, 200-bead, and 150-bead, respectively. The microstructural study showed that as the cooling rate increased, the delta ferrite increased and sigma phase volume fraction decreased. In addition, dendrite arm spacing also varied with cooling rate, and it was 73.2, 75.0, and 46.9 𝜇𝑚 for 250, 200, and 150-bead, respectively shows coincidence with cooling rate. Also, beads geometry were studied for beads with different cooling rate.

Effect of cooling rate on the phase evolution of 316L stainless steel deposited by wire and arc additive manufacturing Keywords:

cooling rate , simulation , wire and arc additive manufacturing , 316L stainless steel

Effect of cooling rate on the phase evolution of 316L stainless steel deposited by wire and arc additive manufacturing authors

Zahra Zolfkhani

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Mahmoud Nili-Ahmadabadi

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Farzad Khodabakhshi

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

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https://civilica.com/doc/2148008

Document National Code:

IMES18_241

Index date: 1 January 2025

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Zolfkhani, Zahra and Nili-Ahmadabadi, Mahmoud and Khodabakhshi, Farzad,1403,Effect of cooling rate on the phase evolution of 316L stainless steel deposited by wire and arc additive manufacturing,The 13th International Conference on Materials Engineering and Metallurgy,Karaj,https://civilica.com/doc/2148008

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Type of center: دانشگاه دولتی

Paper count: 115,910

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