The Change of Mushy‐Zone Length of a Nickel‐Based Single‐Crystal Superalloy During the Static‐Magnetic‐Field‐Assisted Directional Solidification. Issue 6 (13th March 2018)

• Record Type: Journal Article
• Authors: Niu, Chunlin; Ren, Weili; Ding, Biao; Zhong, Yunbo; Yu, Jianbo
• Is Part Of: Crystal research and technology. Volume 53:Issue 6(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-03-13
• Subjects: directional solidification -- magnetic field -- mushy‐zone length -- nickel‐based superalloy; Crystallography -- Periodicals; 548
• DOI: 10.1002/crat.201700187
• Languages: English
• ISSNs: 0232-1300

Abstract

Abstract: 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. Abstract : Effect of longitudinal static magnetic field on mushy‐zone length of a nickel based superalloy during directional solidification had been studied. With enhancing the magnetic field intensity, mushy‐zone length firstly decreases, reaching a minimum under 1.0T magnetic field, and then increases. Under the low and high magnetic field intensity, the temperature gradient G and the solidification‐temperature range ΔT play the main roles in controlling mushy‐zone length, respectively.