The features of the grains size changing in the P/M Ni-base superalloy for disks application produced via different technologies

Bakradze M.M., Volkov A.M., Shestakova A.A., Letnikov M.N., Bubnov M.V.
UDC
669.245
DOI
10.18577/2307-6046-2018-0-2-1-1
Article PDF (Russian) (1.3 MB)
How to cite
Bakradze M.M., Volkov A.M., Shestakova A.A., Letnikov M.N., Bubnov M.V. The features of the grains size changing in the P/M Ni-base superalloy for disks application produced via different technologies // Proceedings of VIAM. 2018. No. 2. DOI: 10.18577/2307-6046-2018-0-2-1-1. URL: https://test.viam.ru/en/journal/2018/2/1
Abstract

The processes of grain growth in the Ni-base superalloy are reviewed. The powder was produced via argon atomization and plasma rotating electrode process. The changing of grain size during solution treatment with various temperatures directly after hot isostatic pressing (HIP) and also after isothermal forging of the compacted material are analyzed. It is shown that grains of the material from argon atomization powder grow slower in comparison with the material from PREP-powder. More intensive grain growth during the increase of solutioning temperature is observed in the case of additional plastic deformation of the compacted material.

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