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| Growth Behavior of Laves Phase of δ-Ferrite in P92 Steels |
| SHI Ru-xing,LIU Zheng-dong |
| Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081， China |
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Abstract The growth of Laves phase in P92 steel after aging at 600℃ was investigated by transmission electron microscopy(TEM), scanning electron microscopy(SEM). Experimental results show that Laves precipitate in δ-Fe region， and the size and coarsening rate are significant higher than the Laves phase in martensite matrix; the higher the content of δ-Fe, the greater the size and growth rate of Laves phase in the δ-Fe; the content of δ-Fe has little impact on the size of Laves phase in martensite matrix.
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Received: 24 February 2011
Published: 27 June 2012
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2012, Vol. 47 
