Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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LOW-TEMPERATURE AGING NICKEL-CHROMIUM-MOLYBDENUM ALLOY G35

Zhilyakov A.Y. 1 Popov A.A. 1 Belikov S.V. 1
1 Ural Federal University named after First President of Russia B.N. Yeltsin
Study of change of electrical resistivity of the alloy G35 depending on the heating temperature was carried out. It is shown that the resistivity of the quenched alloy deviates from the linear relation when heated. By transmission electron microscopy it was revealed that the reason for this deviation is the presence of Guinier-Preston zones in the quenched state and an increase in their numbers during low-temperature aging up to 550 ° C. Cold plastic deformation of hardened alloy enhances the effect on the resistivity curve twice. Change in the lattice parameter of a face-centered cubic solid solution nickel-based cold-worked alloy during aging has been determined by means of X-ray diffraction phase analysis. It is shown that aging the alloy at 500 ° C leads to neutralization the effect on the electrical resistance curve. It was established that the particles of body-centered cubic solid solution of chromium are precipitated from the nickel solid solution during long-term aging.