scholarly journals Effect of Stress Ratio on Axial-Loading Fatigue Characteristics of High Carbon-Chromium Bearing Steel in Very High Cycle Fatigue Regime

2007 ◽  
Vol 56 (12) ◽  
pp. 1103-1110 ◽  
Author(s):  
Kazuaki SHIOZAWA ◽  
Takayuki HASEGAWA ◽  
Seiichi NISHINO
Keyword(s):  
Stress Ratio ◽  
High Cycle Fatigue ◽  
Axial Loading ◽  
Bearing Steel ◽  
Cycle Fatigue ◽  
High Carbon ◽  
Very High Cycle Fatigue ◽  
Fatigue Characteristics ◽  
Very High

OS1510 Statistical Analysis of Very High Cycle Fatigue Property of High Carbon Chromium Bearing Steel in Rotating Bending

2008 ◽  
Vol 2008 (0) ◽  
pp. _OS1510-1_-_OS1510-2_ ◽  
Author(s):  
Benning Lian ◽  
Tatsuo Sakai ◽  
Mitsuhiro Takeda ◽  
Kazuaki Shiozawa ◽  
Noriyasu Oguma ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
High Cycle Fatigue ◽  
Fatigue Property ◽  
Bearing Steel ◽  
Cycle Fatigue ◽  
High Carbon ◽  
Very High Cycle Fatigue ◽  
Rotating Bending ◽  
Very High

S0305-5-4 A Study on Very High Cycle Fatigue Property of Magnesium Alloy in Rotating Bending and Axial Loading

2010 ◽  
Vol 2010.1 (0) ◽  
pp. 165-166
Author(s):  
Noriyuki NINOMIYA ◽  
Yosuke NAKAMORI ◽  
Tatsuo SAKAI ◽  
Shoichi KIKUCHI ◽  
Yuki NAKAMURA ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
High Cycle Fatigue ◽  
Axial Loading ◽  
Fatigue Property ◽  
Cycle Fatigue ◽  
Very High Cycle Fatigue ◽  
Rotating Bending ◽  
Very High

Period of Fine Granular Area Formation of Bearing Steel in Very High Cycle Fatigue Regime

2014 ◽  
Vol 891-892 ◽  
pp. 434-439 ◽  
Author(s):  
Noriyasu Oguma ◽  
Naoya Sekisugi ◽  
Katsuyuki Kida ◽  
Yasuhiro Odake ◽  
Tatsuo Sakai
Keyword(s):  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Intensity Factor ◽  
High Cycle Fatigue ◽  
Bearing Steel ◽  
Cumulative Damage ◽  
Cycle Fatigue ◽  
Very High Cycle Fatigue ◽  
Rotating Bending ◽  
Very High

In order to examine the period of fine granular area (FGA) formation of bearing steel in very high cycle fatigue regime, rotating bending fatigue tests were carried out at the stress amplitude 1100 MPa below the fatigue limit. The tests were interrupted at the cumulative damage values ranging from 0.1 to 0.5 with an increment of 0.1 to charge hydrogen to the specimens. After the charge, the rotating bending tests were continuously carried out. The crack origin areas on all fracture surfaces were checked by a scanning electron microscope (SEM), and it was discovered that FGA was not formed in some of them. From a view point of fracture mechanics, the stress intensity factor ranges of FGA areas, ΔKFGA, were calculated by using Murakamis area model. The ΔKFGA values increase with the increase of the cumulative damage values. Furthermore, ΔKFGA values in this study were smaller than 5 MPam which was obtained from usual fatigue testing. Therefore, we conclude that the stable crack growth stage starts when the threshold stress intensity factor range decreases due to hydrogen embrittlement in the middle of formation of FGA.

Sign in / Sign up

Export Citation Format

Share Document