Original Paper (Vol.54 No.12)

Evaluation for Gigacycle Fatigue Strength of Alloy Tool Steel
Nobuyuki MIYAMOTO, Hiromitsu ASAI, Susumu MIYAKAWA, Yoshiaki AKINIWA and Keisuke TANAKA	1206
The Study of ODA's Formative Condition by Fatigue Test in Vacuum of High Strenght Steel
Hiroki KAWANO, Yoshihito KUROSHIMA and Shoji HARADA	1213
Effect of Hydrogen Charge on Fatigue Properties of Martensitic Stainless Steel
Junji NAGATA, Nicolas GUY and Yukitaka MURAKAMI	1217
Effects of Hydrogen Charge on Cyclic Stress-Strain Properties and Fatigue Behavior of Carbon Steels
Hideyuki UYAMA, Yoji MINE, Yukitaka MURAKAMI, Masaru NAKASHIMA and Kazunori MORISHIGE	1225
Efect of Hydrogen Gas Environment on Fretting Fatigue
Masanobu KUBOTA, Naoki NOYAMA, Munehiro FUETA, Chu SAKAE and Yoshiyuki KONDO	1231
Effects of Crack Size, Stress Ratio and Hydogen on the Near Threshold Fatigue Crack Propagation of High Strength Steel
Kazutoshi YANAGIHARA, Satoshi OHYANAGI,Masanobu KUBOTA, Chu SAKAE and Yoshiyuki KONDO	1237
Fatigue Behaviour of Cast Irons with Spheroidal Carbides Dispersed within Fully Martensitic and Martensitic/Bainitic Matrix Microstructures
Keiro TOKAJI, Takao HORIE and Yasuhiko TAKAHASHI	1244
Effects of Notch and Surface Roughness on Long Life Fatigue Behaviour in High Strength Steels
Hisatake ITOGA, Keiro TOKAJI, Masaki NAKAJIMA and Haeng-NAM Ko	1249
Influence of Shot Peening Treatment on High-Cycle Fatigue Properties of Degassing Processed AC4CH Aluminum Alloy
Kiyotaka MASAKI , Youhei KUMAGAI , Yasuo OCHI, Takashi MATSUMURA and Tatsuhiko HAMAGUCHI	1255
Evaluation of Fatigue Crack Properties on Austenitic Stainless Steel with Artificial Corrosion Pits
Kiyotaka MASAKI, Yasuo OCHI and Takashi MATSUMURA	1262
A Study on the Mechanism of Small Fatigue Crack Deflection Behavior in ƒ¿-Brass by Means of In-stu Atomic Force Microscopy and Crystallographic Orientation Analysis
Atsushi SUGETA, Yoshihiko UEMATSU, Ei-ichi KUMONAGA and Masahiro JONO	1268
Investigation of Fatigue Strength Evaluation Method in Biaxial Stress State
Takanori KATO, Miyuki YAMAMOTO and Yoshinari YAMAMURA	1275
Prediction of Fatigue Crack Propagation Path under Combined Torsional and Axial Loading
Keisuke TANAKA,Hiroki TAKAHASHI,Takuya KATO and Yoshiaki AKINIWA	1281
Crack Propagation Behavior in Pure Aluminum -Observation and Evaluation of Crack Propagation by Mixed Mode-
Chobin MAKABE,Takuya YAMANE,Toshiyasu SUEYOSHI and Tatsujiro MIYAZAKI	1288