HU Benfu LI Huiying WU Chengjian ZHANG Shouhua University of Science and Technology Beijing
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Beijing
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China Associate Professor
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Dept.of Material Science and Engineering
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University of Science and technology Beijing
,
Beijing 100083
,
China.
金属学报(英文版)
The solidification microstructure and phase composition of Ni-base superalloy FGH95 pow- der with different mesh size have been investigated.The structure transition was found from dendrite in major into cellular structure as the powder size reduces and the cooling rate in- creases.The predominant phase was identified as MC-type carbide,with different morphologies,which may be related to their composition and the condition of solidification.Minor phases,such as boride,Laves and primary γ' are also present as ac- companiments of the carbide.
关键词:
powder metallurgy
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