OS0611 Effect of Alumite Layer Thickness on Very High Cycle Fatigue Property of Aluminum Alloy in Rotating Bending

2011 ◽  
Vol 2011 (0) ◽  
pp. _OS0611-1_-_OS0611-3_
Author(s):  
Yuki NAKAMURA ◽  
Shuya MOCHIDA ◽  
Shoichi KIKUCHI ◽  
Tatsuo SAKAI
2010 ◽  
Vol 2010.1 (0) ◽  
pp. 165-166
Author(s):  
Noriyuki NINOMIYA ◽  
Yosuke NAKAMORI ◽  
Tatsuo SAKAI ◽  
Shoichi KIKUCHI ◽  
Yuki NAKAMURA ◽  
...  

2008 ◽  
Vol 2008 (0) ◽  
pp. _OS1510-1_-_OS1510-2_ ◽  
Author(s):  
Benning Lian ◽  
Tatsuo Sakai ◽  
Mitsuhiro Takeda ◽  
Kazuaki Shiozawa ◽  
Noriyasu Oguma ◽  
...  

2021 ◽  
Vol 1802 (2) ◽  
pp. 022079
Author(s):  
Feijuan Wen ◽  
Zhiguo Xing ◽  
Chunmei Tan ◽  
Jingchen Pu ◽  
Lei Zhou

2018 ◽  
Vol 4 (0) ◽  
pp. 18-00134-18-00134
Author(s):  
Takeshi OGAWA ◽  
Shota HASUNUMA ◽  
Yosuke INATOMI ◽  
Natsumi YASUKOCHI ◽  
Shohei SHIGETA

2008 ◽  
Vol 2008 (0) ◽  
pp. _OS1506-1_-_OS1506-2_
Author(s):  
Yasuo OCHI ◽  
Takashi MATSUMURA ◽  
Toshifumi KAKIUCHI ◽  
Masahiro KAWAHARA ◽  
Naoya TAKI ◽  
...  

2012 ◽  
Vol 2012 (0) ◽  
pp. _OS1605-1_-_OS1605-2_
Author(s):  
Shoichi KIKUCHI ◽  
Yanbin ZHANG ◽  
Tatsuo SAKAI ◽  
Akira UENO ◽  
Yoshihiko YOKOYAMA ◽  
...  

2014 ◽  
Vol 891-892 ◽  
pp. 434-439 ◽  
Author(s):  
Noriyasu Oguma ◽  
Naoya Sekisugi ◽  
Katsuyuki Kida ◽  
Yasuhiro Odake ◽  
Tatsuo Sakai

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.


2007 ◽  
Vol 2007.1 (0) ◽  
pp. 123-124
Author(s):  
Yuji SUZUKI ◽  
Kiyotaka MSAKI ◽  
Kazumasa NAKAZIMA ◽  
Yasuo OCHI ◽  
Takashi MATSUMURA

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