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On the mechanism of chromium-nickel two-phase alloy strengthening and fracture
https://doi.org/10.22349/1994-6716-2023-113-1-36-44
Abstract
The mechanism of strengthening of a two-phase chromium-nickel alloy 65Cr-(31-35)Ni–Ti–V–W depends on the heat treatment mode: the lattice periods of the α-phase (alloy matrix is a solid solution of Ni in Cr) in the hardened and equilibrium conditions are almost the same; level of strength and ductility properties of alloy determines dispersion and amount of γ-soft nuclei released during heat treatment (solid solution of Cr in Ni), its hardness is less than that of α-phase. Quenching from single-phase area from 1250°C and tempering at 800−900°C provides a higher strength than annealed alloy and increases the start temperature of high temperature failure. The nature of the destruction depends on the temperature. The influence of γ-phase is manifested more significantly at temperatures below equicohesive.
About the Authors
A. M. Adaskin
Moscow State Technological University “STANKIN”
Russian Federation
Russian Federation
Cand Sc. (Eng)
3A/bld. 1 Vadkovsky lane, 127055 Moscow
V. N. Butrim
JSC “Kompozit”
Russian Federation
Russian Federation
Dr Sc. (Eng)
4 Pionerskaya St, 141070 Moscow Region, Korolev
V. S. Kubatkin
Moscow State Technological University “STANKIN”
Russian Federation
Russian Federation
3A/bld. 1 Vadkovsky lane, 127055 Moscow
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Review
For citations:
Adaskin A.M., Butrim V.N., Kubatkin V.S. On the mechanism of chromium-nickel two-phase alloy strengthening and fracture. Voprosy Materialovedeniya. 2023;(1(113)):36-44. (In Russ.) https://doi.org/10.22349/1994-6716-2023-113-1-36-44
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