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The Change of Mushy‐Zone Length of a Nickel‐Based Single‐Crystal Superalloy During the Static‐Magnetic‐Field‐Assisted Directional Solidification
Author(s) -
Niu Chunlin,
Ren Weili,
Ding Biao,
Zhong Yunbo,
Yu Jianbo
Publication year - 2018
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201700187
Subject(s) - directional solidification , temperature gradient , magnetic field , zone melting , materials science , superalloy , atmospheric temperature range , intensity (physics) , condensed matter physics , field (mathematics) , nickel , range (aeronautics) , metallurgy , thermodynamics , optics , composite material , microstructure , physics , mathematics , quantum mechanics , pure mathematics
The change of the mushy‐zone length of a nickel‐based single‐crystal superalloy during the static‐magnetic‐field‐assisted directional solidification was investigated. The results show that the longitudinal static magnetic field can influence the mushy‐zone length. For the magnetic field less than 1.0T, the mushy‐zone length decreases with increasing the magnetic field intensity. Nevertheless, when the magnetic field is greater than 1.0T, the mushy‐zone length begins to increase. The phenomenon is attributed to the competitive relationship between the temperature gradient in the mushy‐zone and the solidification‐temperature range in controlling the mushy‐zone length. Under the low and high intensity of the magnetic field, the temperature gradient and the solidification‐temperature range play the main roles in controlling the mushy‐zone length, respectively.