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a result,the effective distribution coefficient of the solute atoms is reduced,which leads to the reduction of microsegregation of negative segregation elements and aggravation of microsegregation...Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal SuperalloyYingju Li,Yuefei Teng,Xiaohui Feng,Yuansheng YangSuperalloy Division,Institute of Metal......
, but properties of these materials are reduced with the change of composition by the segregation of solute atoms under long-term neutron radiation conditions[1-2]. Since SUS 304 and SUS 316 steels...-equilibrium segregation with the enrichment or depletion of solute atoms occurred near sink sites such as grain boundaries and voids[9]. The phenomena of non-equilibrium segregation......
Solute atom migration in GH4169 superalloy under electrostatic fieldsYao Wang1,Lei Wang1,Yang Liu1,Xiu Song1,Bei-jiang Zhang2,Jin-hui Du21. Key Laboratory for Anisotropy and Texture of Materials...,and Nb atoms can be accelerated by EFT,which results in the coarsening of γ and γ phases.Meanwhile,lattice distortion can be caused by the segregation of Fe and Cr atoms,owing to the vacancy flows......
, and in JACKSON et al model parameter β governs non-equilibrium segregation at the solid-liquid interface. Solute partitioning is governed by both solute segregation process at the interface... occurs in diffusionless regime without solute segregation at the interface (complete solute trapping). The transition from diffusion-controlled to thermally controlled partitionless solidification......
structure and the solute enrichment around it are quantified. It is found that Zn and Gd elements are synchronized in the LPSO structure, and solute segregation of pure Zn or Gd is not observed...Solute Clusters/Enrichment at the Early Stage of Ageing in Mg-Zn-Gd Alloys Studied by Atom Probe TomographyXin-Fu Gu1,2,Tadashi Furuhara2,Leng Chen1,Ping Yang11. School of Materials Science......
="ChDivSummary">Aiming at the problem of negative segregation under a bloom surface, a coupling macrosegregation model considering electromagnetic field, flow, heat, and solute transport was established... on the flow and solute transport was described by the change of permeability. The model was validated by the magnetic induction intensity of M-EMS and carbon segregation experiment. The results show......
and eutectic regions, greatly affecting the formation and distribution of various secondary phases in the as-cast alloys [17]. Because of the segregation of solute elements and incomplete diffusion processes, the liquid phase becomes enriched with solute elements, while the solid phase remains diluted during the solidification of γ phase. The enrichment of these positive segregation elements is increased......
of initial melt undercooling, solute segregation and grain boundary energy on the grain size of as-solidified Ni-based alloys[J]. Journal of Crystal Growth, 2004, 264(1/3): 392?399. [6] MISRA R D K...; 文献标识码: A Solidification and segregation of DZ68 nickel-base superalloy GUAN Xiu-rong1, 2, 3, ZHENG Zhi2, TONG Jian2, LIU En-ze2, YU Yong-si2, ZHU Yao-xiao2, ZHAI Yu-chun1 (1. School......
the segregation develops to a certain degree, the segregated boron atoms transform from solute status to precipitate status.关键词:...Dynamic process of trace boron non-equilibrium grain boundary segregation and the effect of cooling ratePing Wu, Xinlai He, Bing Cao, and Sen Chen Material Science and Engineering School, University......
the TB–dislocation interaction and TB–solute–dislocation interaction can greatly enhance the yield stress of the recompression along the normal direction(ND).However,the solute segregation at {1012...Effect of Twin Boundary–Dislocation–Solute Interaction on Detwinning in a Mg–3Al–1Zn AlloyJing Xu,Bo Guan,Huihui Yu,Xuezhen Cao,Yunchang Xin,Qing LiuSchool of Materials Science and Engineering......
