Low-temperature hot corrosion effects on the low-cycle fatigue lifetime and cracking behaviors of a powder metallurgy Ni-based superalloy

2018 ◽  
Vol 116 ◽  
pp. 334-343 ◽  
Author(s):  
Shaolin Li ◽  
Xiaoguang Yang ◽  
Hongyu Qi ◽  
Jianan Song ◽  
Duoqi Shi
Keyword(s):  
Powder Metallurgy ◽  
Low Temperature ◽  
Hot Corrosion ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Fatigue Lifetime

Effect of inclusions on low cycle fatigue lifetime in a powder metallurgy nickel-based superalloy FGH96

2019 ◽  
Vol 118 ◽  
pp. 237-248 ◽  
Author(s):  
Dianyin Hu ◽  
Tao Wang ◽  
Qihang Ma ◽  
Xi Liu ◽  
Lihong Shang ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Fatigue Lifetime ◽  
Nickel Based Superalloy

Characteristics of Wheel Tread for Property Improvement of Railway Wheel

2006 ◽  
Vol 326-328 ◽  
pp. 1075-1078
Author(s):  
Seok Jin Kwon ◽  
Jung Won Seo ◽  
Hyun Mu Hur ◽  
Sung Tae Kwon
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Impact Energy ◽  
Low Cycle Fatigue ◽  
Maintenance Cost ◽  
Railway Vehicle ◽  
Cycle Fatigue ◽  
Railway Wheel ◽  
Mechanics Characteristics ◽  
Wheel Material

Despite of improvement of wheel material for railway vehicle, the damages of railway wheel have been occurred in service running. Because of wheel damage with spalling, shelling and thermal crack, the maintenance cost for the railway wheel has increased. The railway wheel had standardized but the chemical composition, the mechanical property and the hardness with respect to railway wheel is merely established. In order to reduce wheel damage, it is necessary to reinforce the standard of railway wheel. In present study, the fracture mechanics characteristics of railway wheel such as low cycle fatigue, fracture toughness, impact energy depended on low temperature and so on have tested. The result shows that the standard of railway wheel has to supplement fracture toughness and impact energy depended on low temperature etc.

scholarly journals Dwell Notch Low Cycle Fatigue Behavior of a Powder Metallurgy Nickel Disk Alloy

2012 ◽  
pp. 853-862 ◽  
Author(s):  
J. Telesman ◽  
T.P. Gabb ◽  
Y. Yamada ◽  
L.J. Ghosn ◽  
D. Hornbach ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Cycle Fatigue ◽  
Disk Alloy

Low Cycle Fatigue Properties of FGH720Li Superalloy

2021 ◽  
Vol 1035 ◽  
pp. 292-296
Author(s):  
Zi Chao Peng ◽  
Jun Ying Sheng ◽  
Xu Qing Wang ◽  
Yue Tang
Keyword(s):  
Fatigue Life ◽  
Powder Metallurgy ◽  
Applied Stress ◽  
Low Cycle Fatigue ◽  
Influencing Factor ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Nickel Base Superalloy ◽  
Loading Frequency ◽  
Cycle Fatigue

Low cycle fatigue (LCF) properties of a powder metallurgy(PM) nickel base superalloy FGH720Li were systematically studied in this work, including smooth LCF and notched LCF tested at various temperatures and different stress. The relationship between the fatigue life and applied stress was analyzed both for smooth fatigue and notch fatigue tests. The effects of loading frequency and stress ratio on LCF behavior were also studied. As an important influencing factor of the fatigue life in powder metallurgy superalloy, the effect of inclusions on LCF life was also investigated. The results showed that the fatigue properties of FGH720Li alloy was excellent, when tested at the temperature of 450°C and applied stress of 1230MPa, the fatigue life could exceed 5×104 cycles. When tested at 650°C and 1150MPa, the average fatigue life was still beyond 2×105 cycles.

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