AeroMat Home      Exposition      To Register      ASM Homepage
Back to "Session 3: Emerging Process Technologies for Titanium Components" Search
  Back to "Titanium Alloy Technology" Search  Back to Main Search

Thursday, June 10, 2004 - 11:00 AM
TAT3.5

Tensile and Fatigue Properties of SiC/Ti-15V-3Cr-3Sn-3Al Composites by Pulse Electric Current Sintering.

S. Kinbara, H. Okano, Nihon University, Tokyo, Japan; H. Izui, Nihon University, Chiba, Japan

Pulse electric current sintering (PECS) process has paid to attention in fields of development such as the functionally gradient materials because of lower sintering temperature and shorter sintering time. In this research, The Ti-15V-3Cr-3Sn-3Al (Ti-15-3-3-3) matrix composites (TMC) reinforced with continuous SCS-6 have been fabricated by using PECS. The Ti-15-3-3-3 powders and SCS-6 mats were alternately fill into the dies and sintered by PECS. TMC were sintered at temperature of 800, 900, or 1000°C and at pressure of 60MPa. The effect of sintering temperatures and sintering pressure on tensile properties of TMC by PECS were evaluated. Tensile test of the sintered TMC by PECS were carried out at room temperature. In addition tensile properties of TMC were experimentally evaluated with 10, 23 or 30% volume fraction of SCS-6.We will discuss fatigue strength of TMC. The ultimate tensile strength of TMCs with 23% volume fraction of SCS-6 fibers sintered at 900°C and 60MPa by PECS had high tensile strength 1510MPa at room temperature. Compared with same volume fraction of SiC fibers of TMCs by hot pressing process, TMC sintered by PECS shown higher tensile strength.