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Materials Science and Engineering of Powder Metallurgy  2023, Vol. 28 Issue (2): 192-202    DOI: 10.19976/j.cnki.43-1448/TF.2022054
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Microstructure and properties of Sc, Y microalloyed René104 nickel-based superalloy powders prepared by argon atomization
CAO Bin, LIU Zuming, WANG Jianchuan, WEI Bing, ZHOU Huan, ZHANG Yazhou
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
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Abstract  Sc, Y microalloyed René104 nickel-based superalloy powders were prepared by argon atomization. The particle size distribution, morphology, microstructure and properties of the powders were analyzed. The results show that the argon atomized powders have high sphericity with less satellite powders and irregular powders, and the yield (mass fraction) of the powders with particle size less than 53 μm is as high as 52.52%. The interior microstructure of the powder is dense, showing both equiaxial grain and dendrite morphology. Ti, Nb, Ta and Mo segregate at the grain boundary. By Sc, Y microalloying, the properties of René104 nickel-based superalloy powders have been improved, with good flow ability and high apparent density. Microhardness, nanohardness (HV) and elastic modulus of the powders are 360±6, (6.5±0.4) GPa and (102.1±10.6 ) GPa, respectively.
Key wordsargon atomization      nickel-based superalloy      microalloying      microstructure      powder property     
Received: 28 April 2022      Published: 04 May 2023
ZTFLH:  TG146  
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CAO Bin
LIU Zuming
WANG Jianchuan
WEI Bing
ZHOU Huan
ZHANG Yazhou
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CAO Bin,LIU Zuming,WANG Jianchuan, et al. Microstructure and properties of Sc, Y microalloyed René104 nickel-based superalloy powders prepared by argon atomization[J]. Materials Science and Engineering of Powder Metallurgy, 2023, 28(2): 192-202.
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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2022054     OR     http://pmbjb.csu.edu.cn/EN/Y2023/V28/I2/192
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