Related Experiment Video
Updated: Aug 21, 2026
Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition
Published on: March 13, 2018
The thickness effects of titanium castings on the surface reaction layer
Hisaji Kikuchi1, Makoto Onouchi, Kohichi Miyanaga
1Department of Dental Materials, Nihon University School of Dentistry, Tokyo, Japan. kikuchi-h@dent.nihon-u.ac.jp
Abstract:
In this study, wedge-shaped CP titanium castings and Ti-6Al-7Nb alloy castings were produced by three types of investment. The effects of the castings' thickness on surface reaction layer were investigated by measuring Vickers hardness, observing the microstructure, and analyzing the oxygen concentration. It was found that the thickness of the surface reaction layer was affected by the thickness of the wedge-shaped castings, and that the hardness value near the surface became lower toward the tip of the wedge-shaped CP titanium and Ti-6Al-7Nb alloy castings. The surface reaction layer of the Ti-6Al-7Nb alloy castings was thinner than that of the CP titanium castings.