Toru Nagaoka

TL;DR: In this article, material flow during friction stir processing (FSP) was investigated with respect to the dispersion of the fullerene molecules and it was revealed that the formation mechanism of the ion ring was closely related to the convectional flow induced by the shoulder of the rotating tool.

TL;DR: In this paper, an ultrasonic soldering of 1070 aluminum was conducted under liquidus temperature of Sn-Zn hypereutectic solder, which propagated ultrasonic vibrations in a direction perpendicular to joining surfaces.

TL;DR: In this article, a SiC-particle-dispersed-aluminum (Al) matrix composites were fabricated in a unique fabrication method, where the powder mixture of SiC, pure Al and 5 mass% Si alloy was uniquely designed to form continuous solid-liquid co-existent state during spark plasma sintering (SPS) process.

TL;DR: In this article, the modification of a thermally sprayed cemented carbide (WC-CrC-Ni) layer by friction stir processing (FSP) was studied and the defects in the cemented carbers were removed and the hardness of the carbers increased to ∼ 1.5 times higher than that of the as-sprayed carbers.

TL;DR: In this paper, the modification of a thermally sprayed cemented carbide (WC-CrC-Ni) layer by friction stir processing (FSP) was studied and the defects in the cemented carbers were removed and the hardness of the carbers increased to ∼ 1.5 times higher than that of the as-sprayed carbers.