Solid-phase joining of the cast intermetallic Ni3Al-based alloys and wrought nickel-based superalloys via using superplastic deformation

Open School-Conference of NIS Countries Ultrafine Grained and Nanostructured Materials

Galieva, E.V.^1 ; Lutfullin, Ya R.^1

Institute for Metals Superplasticity Problems, Russian Academy of Sciences, 39 Khalturin st., Ufa

450001, Russia^1

关键词: Fine grained;    Gamma phase;    High quality;    Nickel- based superalloys;    Solid-phase;    Ultrafine grained structure;    Wrought superalloys;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/447/1/012042/pdf
DOI  :  10.1088/1757-899X/447/1/012042

来源: IOP

【 摘 要 】

The paper summarizes the results of solid-phase joining experiments performed for intermetallic single-crystal Ni3Al-based alloys (known as Russian VKNA-alloys) and wrought fine grained nickel-based superalloys using superplastic deformation of the wrought superalloys. For this, two single-crystal VKNA-alloys, VKNA and VKNA-25 and two Russian nickel-based superalloys, EK61 and EP975, were taken. It was shown that the formation of an ultrafine grained structure (d