Elucidation of Blade Curving Mechanism in Japanese Sword Quenching Using the Simulated Strains-Based Approach

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<p>The mechanism of curving that occurs during the quenching process of Japanese swords has not been clearly explained. Experiments on this phenomenon were conducted using Japanese sword type specimens made of the same steel and processes as Japanese swords, and model Japanese sword type specimens made of carbon steel (S55C) and austenitic stainless steel (SUS304) by machining. Applying the simulated strains-based approach to heat treatment simulation results for these experiments found that positive plastic strain and transformation strain on the cutting-edge side are main contributors to curving generation in Japanese sword.</p><p> </p><p>This Paper was Originally Published in Japanese in NETSUSHORI 63 (2023) 76–82.</p>

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  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 65 (5), 487-493, 2024-05-01

    The Japan Institute of Metals and Materials

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