Heat-Conduction-Type and Keyhole-Type Laser Welding of Ti–Ni Shape-Memory Alloys Processed by Spark-Plasma Sintering

• Main Authors: Bahador, Abdollah, Hamzah, Esah, Kondoh, Katsuyoshi, Tsutsumi, Seiichiro, Umeda, Junko, Abu Bakar, Tuty Asma, Yusof, Farazila
• Format: Article
• Published: Nihon Kinzoku Gakkai 2018
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.um.edu.my/22374/; https://doi.org/10.2320/matertrans.M2017387

High-brightness and high-power laser welding with different welding speeds and laser powers was applied to join Ti51 at%Ni shape-memory alloy, which was fabricated from the elemental pure Ti and pure Ni powders by spark-plasma sintering. Dendritic microstructures were observed in all the welds excep...