Simulation of Quenched Japanese Short Swords Made of Several Kinds of Materials

摘要

The first part of this paper motivates to review the general aspect of traditional steelmaking system, tatara, and the Japanese sword in the framework of science and technology. Emphasis is placed on the quenching provided in almost final part of sword making process, followed by the quenching simulation for long sword.Special application is made, in the final part, on the quenched short swords with same dimension made of several kinds of steels including both traditional and modern steels. Discussions are attached to the pattern of hamon, or martensite transformed area and residual stresses simulated by developed code COSMAP in comparison with experimental data.