3:30 PM - 3:50 PM
K. Kato1, 2, *Y. Akiyama1, 3, H. Fukamachi1, 4, K. Matsuda1, 5, T. Mouri1, 6, A. Aoki1, 7, Y. Ozaki1, 8, Y. Takeda1 (1.Japan Powder Metallurgy Association, Technical Committee for Sintered Mechanical Parts, Japan, 2.Diamet Corporation, Japan, 3.Sumitomo Electric Sintered Alloy, Ltd., 4.Fine Sinter Co., Ltd., Japan, 5.Porite Corporation, Japan, 6.NTN Advanced Materials Corporation, Japan, 7.Nippon Piston Ring Co., Ltd., Japan, 8.Kyusyu University, Japan, )