High-Temperature Low-Cycle Fatigue Behavior in HAYNES 282: Influence of Initial Microstructure

被引：0
|
作者：
K. Barat
M. Ghosh
S. Sivaprasad
Sujoy Kumar Kar
S. Tarafder
机构：
[1] CSIR-National Aerospace Laboratories,
[2] CSIR-National Metallurgical Laboratory,undefined
[3] Indian Institute of Technology,undefined
来源：
Metallurgical and Materials Transactions A | 2018年 / 49卷
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摘要：
We present the low-cycle fatigue behavior of a new nickel-based superalloy in the temperature range of 650 °C to 760 °C. Two initial microstructures having different precipitate distribution has been chosen for this. Low-cycle fatigue behavior of these two microstructures has been characterized using mechanical parameters. These parameters include cyclic anisotropy, plastic strain accumulation and back stress evolution. The deformation response has been substantiated by detailed electron microscopy studies. A deformation mechanism map illustrating defect activity at various testing conditions has been constructed based on the microscopy results.
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页码：5211 / 5226
页数：15
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