氩气雾化Sc、Y微合金化René104镍基高温合金粉末的组织与性能

doi:10.19976/j.cnki.43-1448/TF.2022054

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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 words： argon atomization nickel-based superalloy microalloying microstructure powder property

Received: 28 April 2022 Published: 04 May 2023

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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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