Low-cycle fatigue fracture behavior of a Mg alloy (AZ61) after alkaline Cu, alkaline followed by acidic Cu, Ni/Cu, and Cr-C/Cu electroplating

2016 ◽  
Vol 662 ◽  
pp. 111-119
Author(s):  
Ching An Huang ◽  
Chin Huo Chuang ◽  
Yu Hu Yeh ◽  
Chi Yang You ◽  
Fu-Yung Hsu
Keyword(s):  
Fatigue Fracture ◽  
Fracture Behavior ◽  
Low Cycle Fatigue ◽  
Mg Alloy ◽  
Cycle Fatigue ◽  
Cu Electroplating ◽  
Fatigue Fracture Behavior

High-Cycle Fatigue Fracture Behavior of Microalloyed Bainitic Steels for Hot Forging

2013 ◽  
Vol 634-638 ◽  
pp. 1746-1751
Author(s):  
Fang Zhong Hu ◽  
Wei Jun Hui ◽  
Qi Long Yong
Keyword(s):  
Fatigue Strength ◽  
Fatigue Limit ◽  
Fatigue Fracture ◽  
Fracture Behavior ◽  
High Cycle Fatigue ◽  
Microalloyed Steel ◽  
Bainitic Ferrite ◽  
Cycle Fatigue ◽  
Bainitic Steels ◽  
Fatigue Fracture Behavior

High-cycle fatigue fracture behavior of microalloyed bainitic steels with three different carbon and vanadium contents were studied using rotating-bending fatigue test and compared with the ferrite-pearlite type microalloyed steel F38MnVS. The results indicated that the fatigue properties of the microaIloyed bainitic steels had a significant relation to the microstructures in forging condition. Compared with the ferrite-pearlite type microalloyed steel F38MnVS, the bainitic steels possessed higher fatigue strength and lower fatigue limit ratio σ-1/Rm. It was found that the bainitic transformation temperature was decreased and the hardness of the bainitic ferrite was enhanced, at the same time, the fatigue strength was increased, however, the fatigue limit ratio was lower. Furthermore, according to the SEM images of the fracture surface of fatigue specimens, it was revealed that the fatigue cracks mainly initiated along the bainitic ferrite laths in the specimen surface and preferred to propagate along the length direction of laths.

Effect of Texture and {10-12} Twin on the Low Cycle Fatigue Properties of Rolled AZ31 Mg Alloy

2013 ◽  
Vol 51 (5) ◽  
pp. 325-332 ◽  
Author(s):  
Sung Hyuk Park ◽  
Seong-Gu Hong ◽  
Chong Soo Lee ◽  
Ha Sik Kim
Keyword(s):  
Low Cycle Fatigue ◽  
Mg Alloy ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Az31 Mg Alloy
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