Effect of Aging Time at High Temperature on Microstructural Evolution Behavior of a Nickel-Based Single Crystal Superalloy

Wu, Dan; Tian, Lixi; Ma, Chao

doi:10.1016/s1875-5372(15)30087-4

Cited by 7 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the progress of isothermal solidification, some of the alloy elements enter the γ' phase, and the solute elements with a partition coefficient K <1 are discharged into the leading liquid phase, leading to the enrichment of the leading elements at the solid-liquid interface. Although the nickel-based solid solution will release crystalline latent heat when solidified, the solid-liquid front interface has a positive temperature gradient and the γ'phase interface is cellular, and there must be certain overcooling in the interface front [7]. During the whole solidification process, including isothermal and thermal solidification processes, the liquid phase solidification precipitation path of the middle layer is divided into two ways: solidification in SZ zone and solidification in EZ zone.…”

Section: Coagulation Analysis Of Tlp Connection Ic10 Alloy Jointmentioning

confidence: 99%

Analysis of IC10 alloy joint solidification and the role of B and Hf in TLP diffusion welding

Li¹,

Gao²,

Liu³

et al. 2023

International Conference on Optoelectronic Materials and Devices (ICOMD 2022)

View full text Add to dashboard Cite

In this study, the drop-melting elements B and Hf were added to the alloy material for TLP diffusion welding, and the solidification behavior of IC10 alloy joint was analyzed, and the growth mechanism of γ, γ' and related compounds in TLP connection was explored. The results shows that element B was distributed in the grain boundary of the ISZ region, which increases the binding force of the grain boundary and increases the strength of the grain boundary. As a melting element, Hf element affects the liquid phase line temperature of the middle layer and makes the co-crystal liquid phase have good fluidity. The content of Hf elements has a great influence on the widening stage of the liquid phase area, which increases the dissolution amount of the base material, increases the weld width, and increases the liquid phase metal of the weld, which increases the difficulty of isothermal solidification of the weld and increases the time. When the isothermal solidification is completed, the TLP joint tissue only achieves the local tissue composition homogeneity, and continues to extend the thermal insulation time, which is conducive to the further diffusion of the alloy elements.

show abstract

Section: Coagulation Analysis Of Tlp Connection Ic10 Alloy Jointmentioning

confidence: 99%