Author(s)

H.N. Ko, C. Kagaya, H. Itoga, K. Ogasawara, N. Egami, K. Tokaji & M. Nakajima

Abstract

Effect of fine-particle bombardment on fatigue strength of carburized Cr-Mo steel H.N. Ko', C. Kagaya2, H. ltogal, K. ogasawara3, N. ~ g a r n i ~ , K. ~ o k a j i ~ & M. ~akajima~ I Nakanihon Automotive College, Japan 2 Department of Mechanical Engineering, Chubu University, Japan 3 Inoac Corporation, Japan 4 Department of Mechanical Engineering, Meijo University, Japan 5 Department of Mechanical and System Engineering, Gifu University, Japan 6 Department of Mechanical Engineering, Toyota National College of Technology, Japan Abstract The rotary bending fatigue test was performed at room temperature on carbuized Cr-Mo steel, in order to study the effect of fine-particle bombardment. Gas and vacuum carburized smooth specimens (GC specimen and VC specimen, respectively) and additional FPB-treated specimens (FPB-GC specimen and FPB-VC specimen) were prepared for testing. The fatigue fracture initiated from the surface in GC specimen and VC specimen. On the other hand, fine-particle bombarded

Keywords